Yggdrasil

{t} Add one mana of any color in your
commander's color identity.
{2}{r/w}{u/r}{w/u}: Commander creatures
you control gain hexproof and +3/+3 unti
the end of the turn.
{t}Sacrifice Yggdrasil:you scry 3 and get {r}{u}{w}.
When you activate this ability each opponent
get's a 1/2 Root Of Yggdrasil Token.