Cruel Alliance is a common Sorcery card from Marvel Super Heroes (MSH), collector number 92. Current market price: $0.06 (foil $0.19), TCGplayer market prices via Scryfall.
Teamwork 2 (As an additional cost to cast this spell, you may tap any number of creatures you control with total power 2 or more.) Exile target creature with mana value 3 or less. If this spell was cast using teamwork, instead exile target creature and you gain 3 life.