Knowing Elementalist

Whenever you cast instant spell, you may pay {1}. If you do, put a 1/1 blue elemental creature token onto the battlefield.
Sacrifice a creature: Scry 1. (Look at the top card
of your library. You may put that card on the bottom
of your library.)
I can call on the elements for help. Sometimes they fight for me, sometimes they tell me their secrets. Both
is equally helpful.