You may look at the top card of your library any time. You may play lands and cast spells from the top of your library. If you cast a spell this way, pay life equal to its mana value rather than pay its mana cost. {T}, Sacrifice ten nonland permanents: Each opponent loses 10 life.
![Bolas's Citadel (Draft Weekend) [War of the Spark Promos]](http://paradoxtcg.com/cdn/shop/files/33010ef0-8eba-402e-bf9b-e2efb41d2290_bcb20f20-c358-4fc3-98c0-c7cae0127127.png?v=1776220406&width=1445)
