M:tG card similarity search
XB · Sorcery
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Target creature gets -X/-X until end of turn. You gain X life.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Blightcaster | 3B | Creature — Human Wizard | Whenever you cast an enchantment spell, you may have target creature get -2/-2 until end of turn. 2/3 | 
| Stronghold Overseer | 3BBB | Creature — Demon | Flying Shadow (This creature can block or be blocked by only creatures with shadow.) {B}{B}: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn. 5/5 | 
| Flowstone Slide | X2RR | Sorcery | All creatures get +X/-X until end of turn. | 
| Rollick of Abandon | 3RR | Sorcery | All creatures get +2/-2 until end of turn. | 
| Drana's Silencer | 5B | Creature — Vampire Rogue | When Drana's Silencer enters the battlefield, target creature an opponent controls gets -X/-X until end of turn, where X is the number of creatures in your party. (Your party consists of up to one each of Cleric, Rogue, Warrior, and Wizard.) 3/2 | 
| A-Precipitous Drop | 1B | Enchantment — Aura | Enchant creature When Precipitous Drop enters the battlefield, venture into the dungeon. (Enter the first room or advance to the next room.) Enchanted creature gets -2/-2. It gets -5/-5 instead as long as you've completed a dungeon. | 
| Arms of Hadar | 3B | Sorcery | Creatures target player controls get -2/-2 until end of turn. | 
| Erebos's Intervention | XB | Instant | Choose one — • Target creature gets -X/-X until end of turn. You gain X life. • Exile up to twice X target cards from graveyards. | 
| Drown in Filth | BG | Sorcery | Choose target creature. Mill four cards, then that creature gets -1/-1 until end of turn for each land card in your graveyard. | 
| Viscid Lemures | 4B | Creature — Spirit | {0}: Viscid Lemures gets -1/-0 and gains swampwalk until end of turn. (It can't be blocked as long as defending player controls a Swamp.) 4/3 |