by PineTree on Jan 14, 2022
Nicol Bolas, Child of Wrath
When Nicol Bolas, Child of Wrath enters the
battlefield, each player discards a card.
Whenever a player discards a card, the exile the
top card of their library. For as long as that card
remains exiled, you may cast it, and you may
spend mana as though it were mana of any
colour to cast that spell.