First printed in Duskmourn: House of Horror (2024)
All 4 prints
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Enchantment
If this card 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.
- Illustrated by
- Sergey Glushakov
Legality
- Legal in
- Standard, Pioneer, Modern, Legacy, Vintage, Future Standard, Historic, Timeless, Alchemy, Penny Dreadful, Gladiator, Commander, Duel Commander, Oathbreaker, Brawl, Standard Brawl, Competitive Brawl
- Not legal in
- Pauper, Premodern, Old School 93/94, Pauper Commander, PreDH, Tiny Leaders
Rulings (4)
- If you cast a spell for another cost "rather than pay" its mana cost, you can't choose to cast it for any other alternative cost. You can, however, pay additional costs. If the spell has any mandatory additional costs, such as that of Abhorrent Oculus, those must be paid to cast the spell.
- A player's "opening hand" is the hand of cards the player has after all players have taken mulligans. If players have any cards in hand that allow actions to be taken with them from a player's opening hand, the starting player takes all such actions first in any order, followed by each other player in turn order. Then the first turn begins.
- If you cast a spell for which mana may be spent as though it were mana of any color, you may cast it for Leyline of Mutation's second ability's alternative cost and still spend mana as though it were mana of any color.
- If a spell has
in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
Prices
MTGO price: 0.006 TIX, the cheapest non-foil print (average sell price on GoatBots, 1 Nov 2026).
Combos
15 combos, the most popular first:
- Infinite creature LTB, Infinite creature ETB…: Leyline of Mutation + Morophon, the Boundless + Spider-Byte, Web Warden
- Infinite creature LTB, Infinite creature ETB…: Leyline of Mutation + Morophon, the Boundless + Spider-Man 2099, Miguel O'Hara
- Infinite creature LTB, Infinite creature ETB…: Leyline of Mutation + Morophon, the Boundless + Venser, Shaper Savant
- Infinite creature LTB, Infinite creature ETB…: Leyline of Mutation + Morophon, the Boundless + Sparkcaster
- Infinite creature LTB, Infinite creature ETB…: Ancestral Statue + Leyline of Mutation + Morophon, the Boundless
- Infinite creature LTB, Infinite creature ETB…: Leyline of Mutation + Morophon, the Boundless + Whitemane Lion
- Infinite creature LTB, Infinite creature ETB…: Dream Stalker + Leyline of Mutation + Morophon, the Boundless
- Infinite creature LTB, Infinite creature ETB…: Kor Skyfisher + Leyline of Mutation + Morophon, the Boundless
- Infinite creature LTB, Infinite creature ETB…: Leyline of Mutation + Morophon, the Boundless + Stonecloaker
- Infinite creature LTB, Infinite creature ETB…: Hoverguard Sweepers + Leyline of Mutation + Morophon, the Boundless