1 Deathless Behemoth
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
While that self-targeting is where the infinite Key combos came from, that's really not what Voltaic KeyVoltaic Key was ever used for, anyhow
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Altogether, thats 80 damage in totalenough to KO two players, not including Jetmir on the attack
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