M:tG card similarity search
5U · Creature — Serpent
River Serpent can't attack unless there are five or more cards in your graveyard. Cycling {U} ({U}, Discard this card: Draw a card.) 5/5
| Name | Mana | Type | Text | 
|---|---|---|---|
| Slipstream Eel | 5UU | Creature — Fish Beast | Slipstream Eel can't attack unless defending player controls an Island. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) 6/6 | 
| Steelclad Serpent | 5U | Artifact Creature — Serpent | Steelclad Serpent can't attack unless you control another artifact. 4/5 | 
| Jackal Familiar | R | Creature — Jackal | Jackal Familiar can't attack or block alone. 2/2 | 
| Bonded Horncrest | 3R | Creature — Dinosaur | Bonded Horncrest can't attack or block alone. 5/5 | 
| Ember Beast | 2R | Creature — Beast | Ember Beast can't attack or block alone. 3/4 | 
| Ghostly Prison | 2W | Enchantment | Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you. | 
| Propaganda | 2U | Enchantment | Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you. | 
| War Falcon | W | Creature — Bird | Flying War Falcon can't attack unless you control a Knight or a Soldier. 2/1 | 
| Armored Galleon | 4U | Creature — Human Pirate | Armored Galleon can't attack unless defending player controls an Island. 5/4 | 
| Steam Frigate | 2U | Creature — Human Pirate | Steam Frigate can't attack unless defending player controls an Island. 3/3 |