Blood Pack

When this spell is cast, the caster takes 1d4 + difficulty rating of the target. The target cannot be a humanoid. 

The spell takes a number of minutes equal to the difficulty rating to cast. 

On a success, the creature enters a blood pack with the caster. He can be used in combat by the caster. If the target is unwilling, they cannot be used in combat unless charmed or controlled by other means (ideally, the caster would befriend the target).The creature is then moved into a personal plane for the remainder of their life unless summoned by the person who entered the blood back with them.