Seath the Scaleless

Flying, Indestructible, Protection from blue
Whenever Seath the Scaleless attacks or blocks,
he loses Indestructible until your next upkeep.
{u/b}{u/b}{u/b} : Scry 3.
Seath was the only everlasting dragon born without
scales and was cast aside. He betrayed his kin and
sought the secret to true immortality ever since.