Pyria, just pyria

This creature can't be blocked

{2}{u}: target opponent mills two cards and discards one, exile them and cast one of them without paying it's mana cost

Sneak attack—{t}{1}{b}: destroy target creature, it's controller mills cards equal to double it's attack

"Where's my crab? I haven't seen it in five months!" - pyria, in her inner monologue