Dragonlord Placidusax

Eminence — When you attack with Dragons
whose combined power is 20 or greater, if
Dragonlord Pasidusax is on the battlefield or in
the command zone, take an extra turn after this
one. During that turn, creatures you control
cannot attack.
Flying, Trample
You may only cast Dragonlord Pasidusax on
extra turns.