Lissandra, Ice Witch

Tough (Lissandra takes 1 less damage from all sources.)

When Lissandra enters create a Frozen Thrall token and remove two countdown counters from it.

Level up - When you've cast 2 or more creatures
with 8 power or higher summon a Watcher token,
and give Lissandra +1/+1 and "You take 1 less
damage from all sources." and "{t}, Deal 1 damage
to all targets."