Tetracoil Thund

Pulse (Whenever you cast an instant or sorcery spell, you get an energy counter.)
Pay {e}{e}{e}{e}: Choose one -
* Tetracoil Thund deals 4 damage to target creature or planeswalker.
*Reveal the top four cards of your library, put
one of them into your hand, then put the rest
on the bottom of your library in a random order.