Demon Dragon of Zesteria

Flying, Trample, Protection from non-creature
spells
When The Demon Dragon of Zesteria enters the battlefield, it deals damage equal to its power to
all non-Dragon creatures you don't control. If any
of those creatures die, they cannot be regenerated.
If this creature leaves the battlefield, place
'Queen of the Ashen Castle' onto the battlefield
from your hand, graveyard, or exile.