Profane Alliance

Enchant player.
Whenever Enchanted player draws a card, you
draw card. Whenever Enchanted player is dealt damage, you're dealt that much damage.
Whenever Enchanted player gains life, you gain
that much life. Whenever you're dealt damage, Enchanted player is dealt that much damage. Whenever you draw a card Enchanted player
draws a card. Whenever you gain life, Enchanted player gains that much life.