Defiler of Instinct [DMU] 119

Creature — Phyrexian Kavu

First strike
As an additional cost to cast red permanent spells, you may pay 2 life. Those spells cost (R) less to cast if you paid life this way. This effect reduces only the amount of red mana you pay.
Whenever you cast a red permanent spell, Defiler of Instinct deals 1 damage to any target.