Theme Guide: Ga-Koro (BCOT)

Ga-Koro is a beautiful village of leaf huts swimming on the waters of Naho Bay. According to Mata Nui Online Game 2, the central Principle of the Ga-Matoran is Purity, from which they derive Speed. How these concepts translate to card game mechanics was, at least to me, not entirely obvious at first glance, so let’s go over the design in detail.

Effect #1 preserves the purity of your plays by not letting your opponent corrupt them with any dirty responses, as long as your GY is filled purely with WATER monsters. To make this reasonably balanced, it has an additional restriction of only working on effects activated during the opponent’s turn as Chain Link 2 or higher – which usually means quick effects. Because speed, geddit? Incidentally, quick effects that can be used during the opponent’s turn are somewhat common among existing WATER monsters (e.g. Abyssalacia, Crocodragon, the entire Crystron archetype), so that provides ample deck building options.

Effect #2 grants speed in the form of tempo, specifically an extra summon of a WATER monster at the cost of banishing any monster from the GY (which conveniently helps with the setup for Effect #1). The purity aspect here is that it locks you into only summoning WATER monsters from the Extra Deck for the rest of the turn, as is appropriate with this kind of effect. Also, the type of the summoned monster is changed to match the banished one, as a little trick to remedy the relative lack of good WATER Warriors that can currently be used as substitute for not yet created Ga-Matoran.

So, the big takeaway from Effect #1 in particular is that a Ga-Koro deck should want to play mainly on the opponent’s turn and in response to other effects, since doing so renders them virtually unstoppable. Let’s take a look at how the villagers approach this simple idea.

Maku immediately gives us not one, but two quick effects. In the hand, you can discard her at any time to make a card unaffected by all other effects for the duration of that chain only, which is obviously something that only makes sense as Chain Link 2 or higher and therefore works perfectly for Ga-Koro’s protection. As a little special clause, fellow Matoran get to remain unaffected for an entire turn – imagine it as them being taught to swim, as opposed to just being briefly held above the water like everything else. In the GY, she summons herself when your opponent activates an effect in a free column, which is also inherently at Chain Link 2 or higher.

Continuing the quick effects, Turaga Nokama brings another way to make monsters unaffected, but with more tricky mechanics. Most significant is that rather than a free choice of targets, it’s always herself and the monsters she points to – so up to three monsters, though you lose some flexibility. Also, rather than the usual “except its own” clause, the exception is here made for Nokama’s own effects, so you can do fun things like making an opponent’s monster unaffected by its own protection or stat boosts. This way, you can potentially get some benefit out of the arrow pointing to the opponent’s field. Finally, for synergy with both Ga-Koro’s purity concept and the general inclination of WATER monsters towards being discarded for cost, this effect comes at the price of banishing a card from the GY and discarding one. The banished card determines which card type is not included in the granted protection (to keep things a bit more fair and to leave yourself with ways to deal with an opponent’s monster in the linked zone), while the discard allows triggering effects like Atlantean Heavy Infantry at any time.

Nokama’s other effects further play into this theme of protecting the linked monsters, with herself being indestructible in battle as long as she points to something (because being unaffected by stuff doesn’t help much if you’re a 1200 ATK monster that can easily be run over) and replenishing the fodder you need for the main effect as a reward if you manage to keep the monster(s) she’s pointing to alive until your opponent’s End Phase. Note that the latter is a quick effect rather than a trigger effect like it would usually be, so you can potentially chain it to something and take advantage of Ga-Koro.

The Kanohi Rau, Mask of Translation, adds a further level of complication by “translating” one targeting effect per turn into a “translation” along the Main Monster Zones. Not only does this functionally negate whatever the original effect meant to accomplish, but it also provides an opportunity to set up a monster placement that is convenient for Nokama.

Now, what does the Toa of Water bring to the aid of her village? You guessed it, another quick effect. This one can be chained to any monster effects activated by the turn player’s opponent (for Ga-Koro’s purposes, this particularly means your effects during the opponent’s turn), negates a face-up monster, and gives Gali an ATK boost that can potentially stack to infinity with enough patience. So we basically have three main uses:

  • Bonus disruption during the opponent’s turn whenever you already have a monster effect that can activate (e.g. Maku)
  • Shutting down your opponent’s monster-based disruption on the field during your turn
  • Stacking ATK boosts to get over big monsters in battle (something Ga-Koro otherwise struggles with)

Meanwhile, the Kanohi Kaukau, Mask of Water Breathing, provides some extra pressure on the opponent to use monster effects rather than Spells/Traps so Gali can be triggered during your turn as well. Though really it’s just a joke about Torrential Tribute if I’m quite honest.

Best of Test

Best of Test: Ga-Koro

Conclusion

Decks centered around Ga-Koro focus mainly on quick effects chained to the opponent’s own plays on their turn. By utilizing Nokama’s solid protection in tandem with disruptive effects like Gali, Maku, and even Atlanteans, you can establish a successful control strategy to keep your cards on the board while interfering with the opponent enough to keep victory within reach. Here‘s a sample decklist to get you started (though there are lots of options for entirely different builds), slightly more updated versions are included with each BCOT release.

Theme Guide: Ta-Koro (BCOT)

Amidst the lava flowing from the Mangai volcano lies the fortified village of Ta-Koro, home to the steadfast Ta-Matoran who live according to the Principle of Courage. These facts are reflected in the design of the field spell, which grants protection to those who live within its walls (obviously only FIRE monsters – if there’s others around you probably aren’t in Ta-Koro) and gives strength to those who show the courage to face stronger opponents in battle. And this directly leads us to the basic points of the strategy the Ta-Koro theme is meant to follow:

  • Build a board of only FIRE monsters
  • Battle your opponent’s established board to inflict lots of damage
  • Hide behind the walls protecting you from easy boardwipes if you can’t OTK, so you get the chance to continue the beatdown in another turn

Being a battle focused deck, you of course want to go second, which means you will likely have to contend with negations and floodgates and all that. The nice thing about having this ATK boosting effect on a Field Spell is that, in theory, you only have to deal with any potential Spell negates (using the various going second staples we thankfully have nowadays), plop down any FIRE monster of your choice, activate Ta-Koro, and you are ready to run over just about any monster that can be destroyed by battle – no monster effects needed. We can of course imagine any number of scenarios in which this is not possible, but it has at the very least proven to be a highly convenient option in the EDOPro AI testbed.

Ta-Koro by itself provides a clear strategy we should be going for, but the tools it gives us to achieve that are somewhat situational. In order to ram your monsters into your opponent’s for big damage, you first need to get to a point where both players do in fact have monsters on the field. A reasonably easy condition, but nonetheless one which the Field Spell does not at all help us achieve. Therefore, it is time to look at some of the other cards that go into a Ta-Koro deck.

Like the other Turaga, Vakama is a Link Monster requiring at least one Warrior monster of the right attribute (here FIRE) as material, which means you can use Ta-Matoran, Toa of Fire, or any other FIRE Warrior serving as standin for them (cough Infernoble cough). So the Ta-Koro deck clearly has easy access to him, but what does he contribute?

Well, his first effect, based on the visions of the future he saw in the story, reveals the top card of each Deck, and then the players automatically Special Summon either the revealed monster if it is a FIRE Warrior, or a clunky Attack Position Token with 1500 ATK otherwise. The idea is that, unlike you, the opponent isn’t likely to run any FIRE Warriors, so in the desirable case, you get some useful monster while your opponent only gets the Token. And suddenly, we have set up the exact type of situation that enables Ta-Koro. Which, by the way, can be searched with the help of this effect as well because the opponent is forced to Special Summon and thereby provides the activation trigger for Demise of the Land.

The second effect rewards the battle-focused playstyle Ta-Koro is going for by letting you draw from other monsters’ destruction by battle. This effectively means Ta-Koro’s ATK boost effect replenishes its own cost immediately (unless some kind of battle protection is at play), making for another nice bit of synergy. This effect is also where Vakama’s Mask of Concealment, the Noble Kanohi Huna comes into play: By making it so he cannot be attacked while you control another monster, the opponent is forced into giving you that draw before destroying Vakama himself by battle.

Okay, so we can now get a few monsters on board, make sure our opponent has something we can attack into, and use Ta-Koro’s effect to ensure a successful Battle Phase where we can deal a fair amount of damage. Even if it’s not enough to win right there, the fact that we have multiple monsters (and presumably obey the FIRE restriction) means the Field Spell grants some protection so we may have another chance to finish the job. But “may” is an unreliable word, and in a game like Yugioh, a single layer of blanket destruction protection can easily be broken even by an opponent at a disadvantage. So perhaps it would be better if we could somehow increase the damage output to the point of OTK after all. If we can make certain generic bosses like Powercode Talker, that is already possible, but there really should be some built-in method as well. Still, we cannot exactly expect the small Matoran and Turaga of the village to start hitting like a truck just because it’s convenient.

In other words: We need a hero.

Tahu, as indicated in the long lead-up, serves as your big damage source that bridges the gap between beatdown and OTK. Since you either need to save your Normal Summon for him (though a Ta-Koro deck should at least have plenty of monsters he can Tribute from the hand thanks to his special condition) or coincidentally get him from Vakama’s effect, he’s probably not going to be around in every single board you make, but when he’s there you’re looking at quite the big additional hit in the Battle Phase. Tahu’s effect triggers after damage calculation – regardless of which or whose monster battled – to make a monster’s ATK to 0 and set it on fire so it burns the opponent when destroyed by battle in this turn.

Imagine, for example, this scenario: You control Ta-Koro, Vakama, and Tahu. Your opponent controls a 1500 ATK Vision Token generated by Vakama, as well as some attack position monster with 2800 (original) ATK. Now you can just attack over the Vision Token with Tahu (= 1000 damage), trigger his effect to make the bigger monster’s ATK 0, and attack into that monster with Vakama. Since Ta-Koro compares the original ATK of the battling monsters, you can now trigger its effect before damage calculation to make Vakama gain 2800 for a total of 4200 ATK. Not only does your opponent take that to the face (= 4200 damage), but also the burn from Tahu’s effect (= 2800 damage). We add up 1000 + 4200 + 2800, and surprise, there’s the magic 8000. Meanwhile, without Tahu’s effect, we are limited to 1000 damage from attacking over the Vision Token plus 1400 from boosting Vakama to get over the big monster – still 5600 short of lethal.

Bit of an idealistic setup, of course, but with the help of generic staples and various other FIRE monsters you might just be able to force the game into that kind of state, or alternatively just add some extra attackers to make up the difference in less perfect scenarios.

Adding the Kanohi Hau, Mask of Shielding, to the mix also allows you to attack some big monster with Tahu, safely trigger his effect, and then have one of your small guys finish that monster off for massive burn damage, which is a nice option to have.

C.C. Matoran Kapura

And as the final piece of Ta-Koro support in BCOT, the (real) Ta-Matoran of the Chronicler’s Company brings two more battle-related effects to the table.

The first one is perhaps of more interest in the dedicated Chronicler’s Company deck, but here it still lets the opponent get Kapura’d by Kapura himself attacking before they get a chance to react, which can be pretty good when the Ta-Koro ATK boost is added.

The second effect is my take on something that is simultaneously slow and fast: If you manage to have a monster stick around for a full turn, Kapura can give it an extra attack for potentially a whole lot of additional damage. This is especially potent in combination with Tahu, who could then trigger both halves of his effect all on his own, giving you that much more flexibility in how you use him.

Best of Test

Best of Test: Ta-Koro

Conclusion

A Ta-Koro deck’s aim is to go second and utilize its various built-in tools as well as convenient cards from the general pool to hit through the opponent’s monsters for massive damage. Here‘s a sample decklist to get you started, slightly more updated versions are included with each BCOT release.