Mischief and Mayhem 

Sorcery
Up to two target creatures each get +4/+4 until end of turn.
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Cards that do something similar expected a card that isn't here?
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Tandem Tactics 94%
$0.08#25433
"Up to two target creatures each get +1/+2 until end of turn. You gain 2 life."
Second Breakfast 91%
$0.18#14900
"Up to two target creatures each get +2/+1 until end of turn. Create a Food token."
Allied Assault 89%
$0.15#22323
"Up to two target creatures each get +X/+X until end of turn, where X is the number of creatures in your party."
When We Were Young 87%
$0.12#24746
"Up to two target creatures each get +2/+2 until end of turn. If you control an artifact and an enchantment, those creatures also gain lifelink until end of turn."