Whenever another creature enters the battlefield under your control, if that creature has greater power or toughness than Evolving Adaptive, put an oil counter on Evolving Adaptive
Adventures, after all, are commonly quite powerful thanks to their ability to essentially function as two cards in one
If they're locked behind the mastery pass, you'll need to unlock enough mastery orbs to unlock each one, and it will likely only be possible to unlock enough if you buy the premium mastery pass
For example, having an Urborg, Tomb of Yawgmoth in play adds the swamp land type to all your towns, and future town cards might have basic land types as well
That would be insane, right