The Meathook Massacre [MID - 112] Masters 25 This spell costs 2 less

This spell costs 2 less to cast for each permanent sacrificed this way and 2 less to cast for each other artifact or creature you've sacrificed this turn

or whenever the activation cost of one of opponent’s artifacts is paid

Last of the Abzan enters the battlefield with three +1/+1 counters on it

where X is the greatest power among creatures you control

The Meathook Massacre [MID - 112] Masters 25 This spell costs 2 lessRarity: M #: 112 Creature Type or Sub Type: Legendary Enchantment Rules Text Contains: When The Meathook Massacre enters the battlefield, each creature gets X X until end of turn. Whenever a creature you control dies, each opponent loses 1 life. Whenever a creature an opponent controls dies, you gain 1 life.