Great Hall of the Biblioplex
From Secrets of Strixhaven set
Great Hall of the Biblioplex
Land
: Add
.
, Pay 1 life: Add one mana of any color. Spend this mana only to cast an instant or sorcery spell.
: If this land isn't a creature, it becomes a 2/4 Wizard creature with "Whenever you cast an instant or sorcery spell, this creature gets +1/+0 until end of turn." It's still a land.
Rulings
- If this land becomes a creature but you haven't controlled it continuously since your most recent turn began, you won't be able to activate its mana ability or attack with it that turn.
