Water Prison Jutsu

Water prison jutsu: The target is entrapped in a 5x5 sphere of water that feels as heavy as solid steel. Target's inside are considered grappled and take double damage from attacks while imprisoned this way. Rank: D. Style: Ninjutsu. Chakra cost: 15 per round. Range: Melee. Save: 10, pow vs grappled. Damage: 1d8 suffocation per round. Focus: Yes. Requirements: None. Enhancement: +1 damage die. Minor Action