Whenever a player finishes exiling cards from anywhere, each opponent loses 1 life.
{2}{B}: Level 2
At the beginning of your upkeep, exile the top card of target opponent's library face down. You may look at it for as long as it remains exiled.
{3}{B}: Level 3
You may cast spells exiled with this Class. Those spells cost {1} less to cast, and mana of any type can be spent to cast those spells.