M:tG card similarity search
2BB · Sorcery
If an opponent controls a Plains and you control a Swamp, you may cast this spell without paying its mana cost. All creatures get -2/-2 until end of turn.
| Name | Mana | Type | Text |
|---|---|---|---|
| Gnawing Vermin | B | Creature — Rat | When Gnawing Vermin enters the battlefield, target player mills two cards. When Gnawing Vermin dies, target creature you don't control gets -1/-1 until end of turn. 1/1 |
| Unblinking Observer | 1U | Creature — Homunculus | {T}: Add {U}. Spend this mana only to pay a disturb cost or cast an instant or sorcery spell. 2/1 |
| Refraction Trap | 3W | Instant — Trap | If an opponent cast a red instant or sorcery spell this turn, you may pay {W} rather than pay this spell's mana cost. Prevent the next 3 damage that a source of your choice would deal to you and/or permanents you control this turn. If damage is prevented this way, Refraction Trap deals that much damage to any target. |
| Invasion of Innistrad | 2BB | Battle — Siege | (As a Siege enters, choose an opponent to protect it. You and others can attack it. When it's defeated, exile it, then cast it transformed.) Flash When Invasion of Innistrad enters the battlefield, target creature an opponent controls gets -13/-13 until end of turn. |
| Genestealer Locus | 3U | Creature — Tyranid Human | Neurotraumal Rod — Whenever a creature attacks you, it gets -1/-0 until end of turn. Whenever a creature attacks one of your opponents, it gets +0/+1 until end of turn. 3/3 |
| Azorius Skyguard | 4WU | Creature — Human Knight | Flying, first strike Creatures your opponents control get -1/-0. 3/3 |
| Spelltwine | 5U | Sorcery | Exile target instant or sorcery card from your graveyard and target instant or sorcery card from an opponent's graveyard. Copy those cards. Cast the copies if able without paying their mana costs. Exile Spelltwine. |
| Argivian Avenger | 6 | Artifact Creature — Shapeshifter | {1}: Until end of turn, Argivian Avenger gets -1/-1 and gains your choice of flying, vigilance, deathtouch, or haste. 5/5 |
| Chill | 1U | Enchantment | Red spells cost {2} more to cast. |
| Lesser Werewolf | 3B | Creature — Werewolf | {B}: If Lesser Werewolf's power is 1 or more, it gets -1/-0 until end of turn and put a -0/-1 counter on target creature blocking or blocked by Lesser Werewolf. Activate only during the declare blockers step. 2/4 |