M:tG card similarity search
5U · Creature — Serpent
Sea Serpent can't attack unless defending player controls an Island. When you control no Islands, sacrifice Sea Serpent. 5/5
| Name | Mana | Type | Text |
|---|---|---|---|
| Emperor Crocodile | 3G | Creature — Crocodile | When you control no other creatures, sacrifice Emperor Crocodile. 5/5 |
| Brainwash | W | Enchantment — Aura | Enchant creature Enchanted creature can't attack unless its controller pays {3}. |
| Vigean Hydropon | 1GU | Creature — Plant Mutant | Graft 5 (This creature enters the battlefield with five +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/+1 counter from this creature onto it.) Vigean Hydropon can't attack or block. 0/0 |
| Norn's Annex | 3W/PW/P | Artifact | ({W/P} can be paid with either {W} or 2 life.) Creatures can't attack you or planeswalkers you control unless their controller pays {W/P} for each of those creatures. |
| Blind-Spot Giant | 2R | Creature — Giant Warrior | Blind-Spot Giant can't attack or block unless you control another Giant. 4/3 |
| Martyred Rusalka | W | Creature — Spirit | {W}, Sacrifice a creature: Target creature can't attack this turn. 1/1 |
| Mother of Goons | 2B | Creature — Human Cleric | Whenever a creature an opponent controls dies, sacrifice Mother of Goons unless you insult that creature. 3/2 |
| Blazing Archon | 6WWW | Creature — Archon | Flying Creatures can't attack you. 5/6 |
| Qal Sisma Behemoth | 2R | Creature — Ogre Warrior | Qal Sisma Behemoth can't attack or block unless you pay {2}. 5/5 |
| Okk | 1R | Creature — Goblin | Okk can't attack unless a creature with greater power also attacks. Okk can't block unless a creature with greater power also blocks. 4/4 |