Oracle

Instant 

Target creature you don't control gets -4/-0 until end of turn.
Overload 2U (You may cast this spell for its overload cost. If you do, change its text by replacing all instances of "target" with "each.")

Tournooi-info

Legal in: Vintage, Legacy, Modern, Commander

Officiele rulings

4/15/2013
If you don’t pay the overload cost of a spell, that spell will have a single target. If you pay the overload cost, the spell won’t have any targets.

4/15/2013
Because a spell with overload doesn’t target when its overload cost is paid, it may affect permanents with hexproof or with protection from the appropriate color.

4/15/2013
Note that if the spell with overload is dealing damage, protection from that spell’s color will still prevent that damage.

4/15/2013
Overload doesn’t change when you can cast the spell.

4/15/2013
Casting a spell with overload doesn’t change that spell’s mana cost. You just pay the overload cost instead.

4/15/2013
Effects that cause you to pay more or less for a spell will cause you to pay that much more or less while casting it for its overload cost, too.

4/15/2013
If you are instructed to cast a spell with overload “without paying its mana cost,” you can’t choose to pay its overload cost instead.

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