Nico Bolas, Supreme

Flying, Hexproof, Lifelink
Nico Bolas, Supreme cannot be exiled.
Nico Bolas, Supreme gains +0/+2 for every 2 life
paid to cast it.
{w}: Untap another creature you control.
{g}: A creature you control gains Trample
{w}{u}{b}{r}{g}, Sacrifice Nico Bolas, Supreme: Give target creature +4/+X Flying and Hexproof, X is
equal to Nico Bolas' toughness when sacrificed.