Team Tactics

Teamwork 1 (As an additional cost to cast this spell, you may tap any number of creatures you control with total power 1 or more.) Target creature gains double strike until end of turn. If this spell was cast using teamwork, that creature also gains trample until end of turn.

From Magic: The Gathering.

Open the interactive version on https://mythscribe.cloud/app/tcg/cards/cms6onsnkhdgjpb1hme2ds208.