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

where X is the greatest power among creatures you control

and twisted by rage

Creature Type or Sub Type: Legendary Artifact — Equipment

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

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.