Shiva, The Golden Flame

+1: When target player puts an enchantment on a creature, destroy that enchantment. You gain 1 life.
-3: Put a colorless 0/0 Gold Token onto the battlefield. It has: "Sacrifice this artifact. Add 1 to your mana pool.
-10: When you are down to 1 life, target player also gets 1 life. Flip a coin. If heads, you gain 19 life. If tails, target player gains 19 life.