Sevika, Enforcer of Zhaun

Trample, Menace
At the beginning of combat on your turn each opponent rolls a d20. Sevika can only attack the opponent who rolled the lowest
When Sevika attacks, exile the top card of your library. If the exiled card is an instant or sorcery, you may cast it by paying its cost reduced by {3}. If the exiled card is a permanent
you may put it onto the battlefield under your control