Form of the Dinosaur 103 (Rivals of Ixalan)

When this enchantment enters, your life total becomes 15. At the beginning of your upkeep, this enchantment deals 15 damage to target creature an opponent controls and that creature deals damage equal to its power to you.

NM - $1.50
LP - $1.50
MP - $1.50
HP - $1.50
DMG - $1.50