Forbidden Ritual is a 0 Mana Cost Rare Warlock Spell card from the Whispers of the Old Gods set!
Spend all your Mana. Summon that many 1/1 Tentacles.
Flavor TextActually, C'Thun gives his full support for this ritual.
Cards Relating to Forbidden Ritual
Type: Minion - Cost: 1 - Attack: 1 - Health: 1