The Night King

Reach, Menace, Trample, Lifelink
{5}{u/b}{u/b}{u/b},{t} Night King gains indestructible
until end of turn.
{7}{u/b}{u/b}{u/b},{t} Night King and all White Walkers
you control gain indestructible until end of turn.
Night King gains flying if you control an Undead Dragon creature token