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Double those counters

Preston Garvey, Minuteman is another excellent option as your Commander in this deck too

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If your opponent activates something

So any upgrades basically based on marrying both the dragons effect (thats sounds...wrong) but of course with the a balance but powerful personal touch (With some agenda to make gemini pool better) which, unless its its OP then its pretty much "why not?" Double attack of Cthonian is upgraded by using Yata-Lock as inspiration to become phase doubling to emulate the repeated turns that occure on that lock (of course the fair version of it) while also emulate "attacking twice" via double battle phase