Delphae, Sight Sifter

Any time you could cast a spell, you may choose
a nonland card name, then reveal the bottom
card of your library. If that card has the chosen
name, you may cast it this turn. Otherwise,
shuffle your library, then Delphae, Sight Sifter
loses all abilities until end of turn.
Whenever an opponent casts their second spell
each turn, scry 1.