M:tG card similarity search
1G · Instant
Cast this spell only during the declare blockers step. Attacking creatures become blocked. (This spell works on creatures that can't be blocked.)
| Name | Mana | Type | Text |
|---|---|---|---|
| Erayo's Essence | Legendary Enchantment | Whenever an opponent casts their first spell each turn, counter that spell. | |
| Swamp Mosquito | 1B | Creature — Insect | Flying Whenever Swamp Mosquito attacks and isn't blocked, defending player gets a poison counter. (A player with ten or more poison counters loses the game.) 0/1 |
| Emergence Zone | Land | {T}: Add {C}. {1}, {T}, Sacrifice Emergence Zone: You may cast spells this turn as though they had flash. | |
| Merfolk Skyscout | 2UU | Creature — Merfolk Scout | Flying Whenever Merfolk Skyscout attacks or blocks, untap target permanent. 2/3 |
| Nether Void | 3B | World Enchantment | Whenever a player casts a spell, counter it unless that player pays {3}. |
| Skulking Knight | 2B | Creature — Zombie Knight | Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) When Skulking Knight becomes the target of a spell or ability, sacrifice it. 3/3 |
| Divebomber Griffin | 3WW | Creature — Griffin | Flying {T}, Sacrifice Divebomber Griffin: It deals 3 damage to target attacking or blocking creature. 3/2 |
| Klauth, Unrivaled Ancient | 5RG | Legendary Creature — Dragon | Flying, haste Whenever Klauth, Unrivaled Ancient attacks, add X mana in any combination of colors, where X is the total power of attacking creatures. Spend this mana only to cast spells. Until end of turn, you don't lose this mana as steps and phases end. 4/4 |
| Sunrise Cavalier | 1RW | Creature — Human Knight | Trample, haste If it's neither day nor night, it becomes day as Sunrise Cavalier enters the battlefield. Whenever day becomes night or night becomes day, put a +1/+1 counter on target creature you control. 3/3 |
| Halls of Mist | Land | Cumulative upkeep {1} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) Creatures that attacked during their controller's last turn can't attack. |