First printed in Innistrad: Midnight Hunt (2021)
All 2 prints
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Innistrad: Double Feature (DBL) #115, 2022
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Innistrad: Midnight Hunt (MID) #115, 2021
Necrosynthesis 
Enchantment — Aura
Enchant creature
Enchanted creature has "Whenever another creature dies, put a +1/+1 counter on this creature."
When enchanted creature dies, look at the top X cards of your library, where X is its power. Put one of those cards into your hand and the rest on the bottom of your library in a random order.
MTGO price: 0.003 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
55 combos from Commander Spellbook, the most popular first.
- Infinite +1/+1 counters on a creature, Infinite colorless mana…: Basking Broodscale + Necrosynthesis
- Infinite +1/+1 counters on a creature, Infinite colorless mana…: Ashnod's Altar + Necrosynthesis + Scurry Oak
- Infinite +1/+1 counters on a creature, Infinite colored mana…: Necrosynthesis + Phyrexian Altar + Scurry Oak
- Infinite +1/+1 counters on a creature, Infinite colorless mana…: Ashnod's Altar + Herd Baloth + Necrosynthesis
- Infinite +1/+1 counters on a creature, Infinite colored mana…: Herd Baloth + Necrosynthesis + Phyrexian Altar
- Infinite colorless mana, Infinite death triggers…: Ashnod's Altar + Ghave, Guru of Spores + Necrosynthesis
- Infinite +1/+1 counters on a creature, Infinite death triggers…: Altar of Dementia + Necrosynthesis + Scurry Oak
- Infinite +1/+1 counters on a creature, Infinite death triggers…: Altar of Dementia + Herd Baloth + Necrosynthesis
- Infinite +1/+1 counters on a creature, Infinite colorless mana…: Ashnod's Altar + Necrosynthesis + Tayam, Luminous Enigma + Young Wolf
- Infinite +1/+1 counters on a creature, Infinite colorless mana…: Ashnod's Altar + Necrosynthesis + Strangleroot Geist + Tayam, Luminous Enigma
Legality
Constructed
- Standard Not legal
- Pioneer Legal
- Modern Legal
- Legacy Legal
- Vintage Legal
- Pauper Not legal
- Future Standard Not legal
- Historic Legal
- Timeless Legal
- Alchemy Not legal
- Penny Dreadful Not legal
- Premodern Not legal
- Old School 93/94 Not legal
Singleton
- Gladiator Legal
Commander formats
- Commander Legal
- Duel Commander Legal
- Pauper Commander Not legal
- PreDH Not legal
- Tiny Leaders Legal
- Oathbreaker Legal
- Brawl Legal
- Standard Brawl Not legal
- Competitive Brawl Legal