Oracle

Instant 

Destroy target creature if it has converted mana cost 2 or less.
Revolt - Destroy that creature if it has converted mana cost 4 or less instead if a permanent you controlled left the battlefield this turn.

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

2/9/2017
Fatal Push can target any creature, even one with converted mana cost 5 or greater. The creature’s converted mana cost is checked only as Fatal Push resolves.

2/9/2017
If the mana cost of a creature on the battlefield includes X, X is considered to be 0.

2/9/2017
Revolt abilities check only whether a permanent you controlled left the battlefield this turn or not. They don’t apply multiple times if more than one permanent you controlled left the battlefield. They don’t check whether the permanent that left the battlefield is still in the zone it moved to.

2/9/2017
Revolt abilities don’t care why the permanent left the battlefield, who caused it to move, or where it moved to. They’re equally satisfied by an artifact you sacrificed to pay a cost, a creature you controlled that was destroyed by Murder, or an enchantment you returned to your hand with Leave in the Dust.

2/9/2017
Tokens that leave the battlefield will satisfy a revolt ability.

2/9/2017
Energy counters aren’t permanents. Paying E won’t satisfy a revolt ability.

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