M:tG card similarity search
3W · Legendary Artifact
If a source an opponent controls would deal damage to you or a permanent you control, prevent 1 of that damage. Whenever you or another permanent you control becomes the target of a spell or ability an opponent controls, counter that spell or ability unless its controller pays {1}.
| Name | Mana | Type | Text |
|---|---|---|---|
| Alpha Guard | 1G | Creature — Elf Employee | When Alpha Guard enters the battlefield, choose a letter. {T}: Untap another target permanent whose name starts with the chosen letter. 1/2 |
| Detention Sphere | 1WU | Enchantment | When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent. When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control. |
| Azorius Ploy | 1WWU | Instant | Prevent all combat damage target creature would deal this turn. Prevent all combat damage that would be dealt to target creature this turn. |
| Wildfire | 4RR | Sorcery | Each player sacrifices four lands. Wildfire deals 4 damage to each creature. |
| Falkenrath Perforator | 1R | Creature — Vampire | Whenever Falkenrath Perforator attacks, it deals 1 damage to defending player. 2/1 |
| Lethal Vapors | 2BB | Enchantment | Whenever a creature enters the battlefield, destroy it. {0}: Destroy Lethal Vapors. You skip your next turn. Any player may activate this ability. |
| Kavu Runner | 3R | Creature — Kavu | Kavu Runner has haste as long as no opponent controls a white or blue creature. 3/3 |
| Extravagant Replication | 4UU | Enchantment | At the beginning of your upkeep, create a token that's a copy of another target nonland permanent you control. |
| Keeper of Secrets | 5R | Creature — Demon | First strike, haste Symphony of Pain — Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent. 6/4 |
| Tovolar's Magehunter | Creature — Werewolf | Whenever an opponent casts a spell, Tovolar's Magehunter deals 2 damage to that player. At the beginning of each upkeep, if a player cast two or more spells last turn, transform Tovolar's Magehunter. 5/5 |