Elven Lyre

{1}, {T}, Sacrifice Elven Lyre: Target creature gets +2/+2 until end of turn.

Mountain

{1}, {T}, Sacrifice Aeolipile: It deals 2 damage to any target.

Brassclaw Orcs can't block creatures with power 2 or greater.

Whenever Dwarven Soldier blocks or becomes blocked by one or more Orcs, Dwarven Soldier gets +0/+2 until end of turn.

Dwarven Catapult deals X damage divided evenly, rounded down, among all creatures target opponent controls.

{1}: Flip a coin. If you win the flip, target Orc creature gets +2/+0 until end of turn. If you lose the flip, it gets -0/-2 until end of turn.