Leyline of Mutation - Duskmourn: House of Horror - 188

Enchantment

Mana Cost: {2}{G}{G}

If this card is in your opening hand, you may begin the game with it on the battlefield.
You may pay {W}{U}{B}{R}{G} rather than pay the mana cost for spells you cast.

Rare · Duskmourn: House of Horror · #188 (DSK)

Illustrated by Sergey Glushakov