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.
![Post's Citadel - Bolas's Citadel [Secret Lair Drop Series]](http://paradoxtcg.com/cdn/shop/files/0d2fd558-1523-5fa3-895c-c80109183db5.jpg?v=1756231670&width=1445)
