M:tG card similarity search
2BB · Creature — Human Assassin
First strike When Nightshade Assassin enters the battlefield, you may reveal X black cards in your hand. If you do, target creature gets -X/-X until end of turn. Madness {1}{B} (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.) 2/1
| Name | Mana | Type | Text |
|---|---|---|---|
| Hell Swarm | B | Instant | All creatures get -1/-0 until end of turn. |
| Infest | 1BB | Sorcery | All creatures get -2/-2 until end of turn. |
| Languish | 2BB | Sorcery | All creatures get -4/-4 until end of turn. |
| Marsh Gas | B | Instant | All creatures get -2/-0 until end of turn. |
| Nausea | 1B | Sorcery | All creatures get -1/-1 until end of turn. |
| Rags | 2BB | Sorcery | All creatures get -2/-2 until end of turn. |
| Shrivel | 1B | Sorcery | All creatures get -1/-1 until end of turn. |
| Holy Light | 2W | Instant | Nonwhite creatures get -1/-1 until end of turn. |
| Festergloom | 2B | Sorcery | Nonblack creatures get -1/-1 until end of turn. |
| Ambulatory Edifice | 2B | Artifact Creature — Phyrexian Construct | When Ambulatory Edifice enters the battlefield, you may pay 2 life. When you do, target creature gets -1/-1 until end of turn. 3/2 |