Leyline of Mutation - Duskmourn: House of Horror Promos

Leyline of Mutation

Enchantment

If Leyline of Mutation is in your opening hand, you may begin the game with it on the battlefield.

You may pay rather than pay the mana cost for spells you cast.

Life thrives in the Hauntwoods, but it follows its own laws, unbound from the natural order.

Legalities