M:tG card similarity search
5B · Creature — Horror
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) {T}: Add {B}{B}{B}{B}. Target opponent gains control of Witch Engine. (Activate only as an instant.) 4/4
| Name | Mana | Type | Text | 
|---|---|---|---|
| Coveted Falcon | 1UU | Artifact Creature — Bird | Flying Whenever Coveted Falcon attacks, gain control of target permanent you own but don't control. Disguise {1}{U} When Coveted Falcon is turned face up, target opponent gains control of any number of target permanents you control. Draw a card for each one they gained control of this way. 1/4 | 
| Humble Defector | 1R | Creature — Human Rogue | {T}: Draw two cards. Target opponent gains control of Humble Defector. Activate only during your turn. 2/1 | 
| Tainted Field | Land | {T}: Add {C}. {T}: Add {W} or {B}. Activate only if you control a Swamp. | |
| Tainted Isle | Land | {T}: Add {C}. {T}: Add {U} or {B}. Activate only if you control a Swamp. | |
| Tainted Peak | Land | {T}: Add {C}. {T}: Add {B} or {R}. Activate only if you control a Swamp. | |
| Tainted Wood | Land | {T}: Add {C}. {T}: Add {B} or {G}. Activate only if you control a Swamp. | |
| Darksteel Citadel | Artifact Land | Indestructible {T}: Add {C}. | |
| Twist Allegiance | 6R | Sorcery | You and target opponent each gain control of all creatures the other controls until end of turn. Untap those creatures. Those creatures gain haste until end of turn. | 
| Empress Galina | 3UU | Legendary Creature — Merfolk Noble | {U}{U}, {T}: Gain control of target legendary permanent. (This effect lasts indefinitely.) 1/3 | 
| Kozilek's Channeler | 5 | Creature — Eldrazi | {T}: Add {C}{C}. 4/4 |