Lightshell Duo [Bloomburrow]

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)
When Lightshell Duo enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.) “Lightning and snail as one!” cried the rat. “It’s so beautiful!” the otter gasped in awe.