First printed in Time Spiral (2006)
All 4 prints
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Jumpstart 2022 (J22) #135, 2022
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Time Spiral Remastered (TSR) #264, 2021
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Duel Decks: Elspeth vs. Tezzeret (DDF) #55, 2010
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Time Spiral (TSP) #253, 2006
Clockwork Hydra 
Artifact Creature — Hydra
This creature enters with four +1/+1 counters on it.
Whenever this creature attacks or blocks, remove a +1/+1 counter from it. If you do, it deals 1 damage to any target.
: Put a +1/+1 counter on this creature.
Legality
- Legal in
- Modern, Legacy, Vintage, Penny Dreadful, Commander, Duel Commander, PreDH, Oathbreaker
- Not legal in
- Standard, Pioneer, Pauper, Future Standard, Historic, Timeless, Alchemy, Premodern, Old School 93/94, Gladiator, Pauper Commander, Tiny Leaders, Brawl, Standard Brawl, Competitive Brawl
MTGO price: 0.003 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
31 combos from Commander Spellbook, the most popular first.
- Infinite creature ETB, Infinite creature LTB…: Ashnod's Altar + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Infinite creature ETB, Infinite creature LTB…: Altar of Dementia + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Infinite creature LTB, Infinite death triggers…: Carrion Feeder + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Infinite creature ETB, Infinite creature LTB…: Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Phyrexian Altar
- Infinite creature sacrifice triggers, Infinite +1/+1 counters on a creature…: Bartolomé del Presidio + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Infinite creature ETB, Infinite creature LTB…: Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Viscera Seer
- Infinite creature ETB, Infinite creature LTB…: Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Umbral Collar Zealot
- Draw the game, Infinite +1/+1 counters on a creature…: Arcbound Ravager + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Infinite creature ETB, Infinite creature LTB…: Blasting Station + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
- Infinite +1/+1 counters on a creature, Infinite creature ETB…: Bloodflow Connoisseur + Clockwork Hydra + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight