First printed in Urza's Saga (1998)
All 2 prints
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The List (PLST) #USG-169, 2022
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Urza's Saga (USG) #169, 1998
Witch Engine 
Creature — Horror
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
: Add . Target opponent gains control of this creature. (Activate only as an instant.)
Legality
- Legal in
- Legacy, Vintage, Premodern, Commander, Duel Commander, PreDH, Oathbreaker
- Not legal in
- Standard, Pioneer, Modern, Pauper, Future Standard, Historic, Timeless, Alchemy, Penny Dreadful, Old School 93/94, Gladiator, Pauper Commander, Tiny Leaders, Brawl, Standard Brawl, Competitive Brawl
MTGO price: 0.01 TIX, the cheapest non-foil print (average sell price on GoatBots, 28 Oct 2026).
Combos
4 combos from Commander Spellbook, the most popular first.
- Infinite black mana, Infinite colorless mana…: Ashnod's Altar + Corpse Dance + Witch Engine
- Infinite black mana, Infinite death triggers…: Blood Funnel + Corpse Dance + Witch Engine
- Infinite black mana, Infinite creature ETB…: Altar of Dementia + Sedris, the Traitor King + Void Maw + Witch Engine
- Infinite card draw, Infinite draw triggers…: Agatha's Soul Cauldron + Captivating Crew + Khârn the Betrayer + Witch Engine