Blue Eyes Ultimate Dragon

As long as Blue Eyes Ultimate Dragon is your
commander you deck must contain at least 3
Blue Eyes White Dragon.
Imprint — When Blue Eyes Ultimate Dragon enters
the battlefield, exile 3 Blue Eyes White Dragon creatures that you control.
Blue Eyes Ultimate Dragon's power and
toughness are equal to the total power of
all creatures Exiled with Blue Eyes Ultimate Dragon.
Flying, Double Strike
Blue Eyes Ultimate Dragon can attack
2 extra times per combat phase.