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That's the power of Wish effects

Watermark: Azorius Illustrated by Scott Chou Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp

For 5 mana, you get a 5/5 (functionally 6/6) creature that turns your legends into serious threats with a +X/+X pump based on the number of legends you control

By the same token, "Blue" ( Mythical Island ) reduces the damage your Pokmon take from attacks next turn by 10, which can sometimes make the difference between your Active Pokmon being knocked out or surviving

I realize your situation is WOTC and not TPCI like mine, still a similar situation though