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Great White has a base attack of 1600 and gets a 200 ATK boost from Umi essentially letting you play 6 La Jinns

Looks like they were using the same artwork as the original poster (Poliwhirl Mewtwo)

However, this is not an effect that is limited to modern monsters, as some retro cards also have this powerful effect, and the most relevant of these cards is Gale Dogra

What do you guys know and think about them

But at this point in the OCG, Zoodiac is the only deck with a 1-card starter, whereas other decks like Metalfoes or ABC requires 2 3 cards to start, which means Zoodiac effectively only needs 3 or 4 disruptions to shutdown their opponents play