Ral's Sentinel

Haste, Vigilance, Hexproof, Trample
Ral's Sentinel cannot be cast unless Ral Caller Of Strom's is on the battle field.
When Ral's Sentinel enters the battle field it has X amount of toughness and power where X is your current total life.
Ral's Sentinel cannot regenerate HP
If a spell of any mana color other than red or blue is cast while Ral's Sentinel is on the battle field, this creature is exiled.