#Testing Lethargy Trap. #"If three or more creatures are attacking, you may pay {U} rather than pay Lethargy Trap's mana cost. -- Attacking creatures get -3/-0 until end of turn." #Only 2 creatures are attacking. You shouldn't be able to cast Trap alternatively. [INIT] FIRSTMAIN [PLAYER1] hand:Lethargy Trap inplay:Mox Sapphire,Hill Giant,Grizzly Bears,Serra Angel [PLAYER2] life:20 [DO] next #combatbegins next #attackers Hill Giant Grizzly Bears Mox Sapphire Lethargy Trap next next [ASSERT] COMBATDAMAGE [PLAYER1] inplay:Mox Sapphire,Hill Giant,Grizzly Bears,Serra Angel hand:Lethargy Trap manapool:{0} [PLAYER2] life:15 [END]