Aethersnatch (C15)

Instant

Gain control of target spell. You may choose new targets for it. (If that spell becomes a permanent, it enters the battlefield under your control.)

"You were saying?"
Aaron Miller
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uuid: 5680786e-f24c-5d38-b866-07cf4f37a353

2015-11-04:
Aethersnatch can target any spell, even one without targets.
2015-11-04:
If you gain control of an instant or sorcery spell, it will be put into its owner’s graveyard as it resolves.
2015-11-04:
You may change any or none of the spell’s targets. If you change a target, you must choose a legal target for the spell. If you can’t, you must leave the target unchanged (even if the current target is illegal). Notably, if you were originally chosen as a “target opponent” for a spell you gain control with Aethersnatch, you are now an illegal target as you aren’t your own opponent.
2015-11-04:
Combat damage dealt by a commander is tracked without regard to who controlled the commander at the time it dealt damage. For example, say a commander deals 10 combat damage to a player, leaves the battlefield, is recast, and you gain control of it with Aethersnatch. If it deals another 11 combat damage to that same player, they will lose the game.
2015-11-04:
If you gain control of a commander spell, the commander’s owner chooses whether to put it in the command zone if it later leaves the battlefield.