M:tG card similarity search
2GW · Enchantment
Black creatures can't attack unless their controller sacrifices a land for each black creature they control that's attacking. (This cost is paid as attackers are declared.)
| Name | Mana | Type | Text | 
|---|---|---|---|
| Steam Frigate | 2U | Creature — Human Pirate | Steam Frigate can't attack unless defending player controls an Island. 3/3 | 
| Flowering Lumberknot | 3G | Creature — Treefolk | Flowering Lumberknot can't attack or block unless it's paired with a creature with soulbond. 5/5 | 
| Whimwader | 4U | Creature — Elemental | Whimwader can't attack unless defending player controls a blue permanent. 6/4 | 
| Training Drone | 3 | Artifact Creature — Drone | Training Drone can't attack or block unless it's equipped. 4/4 | 
| Throatseeker | 2B | Creature — Vampire Ninja | Unblocked attacking Ninjas you control have lifelink. 3/2 | 
| River Serpent | 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 | 
| Manta Ray | 1UU | Creature — Fish | Manta Ray can't attack unless defending player controls an Island. Manta Ray can't be blocked except by blue creatures. When you control no Islands, sacrifice Manta Ray. 3/3 | 
| Change of Heart | W | Instant | Buyback {3} (You may pay an additional {3} as you cast this spell. If you do, put this card into your hand as it resolves.) Target creature can't attack this turn. | 
| Ethereal Whiskergill | 3U | Creature — Elemental | Flying Ethereal Whiskergill can't attack unless defending player controls an Island. 4/3 | 
| Deep-Sea Terror | 4UU | Creature — Serpent | Deep-Sea Terror can't attack unless there are seven or more cards in your graveyard. 6/6 |