M:tG card similarity search
2B · Creature — Elf Assassin
{T}, Discard an Elf card: Target creature gets -X/-X until end of turn, where X is the number of Elves you control. 1/1
| Name | Mana | Type | Text | 
|---|---|---|---|
| Veldrane of Sengir | 5BB | Legendary Creature — Human Rogue | {1}{B}{B}: Veldrane of Sengir gets -3/-0 and gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.) 5/5 | 
| Black Sun's Twilight | XB | Instant | Up to one target creature gets -X/-X until end of turn. If X is 5 or more, return a creature card with mana value X or less from your graveyard to the battlefield tapped. | 
| Finality | 4BG | Sorcery | You may put two +1/+1 counters on a creature you control. Then all creatures get -4/-4 until end of turn. | 
| Strength of Cedars | 4G | Instant — Arcane | Target creature gets +X/+X until end of turn, where X is the number of lands you control. | 
| Vedalken Mesmerist | 1U | Creature — Vedalken Wizard | Whenever Vedalken Mesmerist attacks, target creature an opponent controls gets -2/-0 until end of turn. 2/1 | 
| Nightshade Assassin | 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 | 
| So Tiny | U | Enchantment — Aura | Flash Enchant creature Enchanted creature gets -2/-0. It gets -6/-0 instead as long as its controller has seven or more cards in their graveyard. | 
| Elder of Laurels | 2G | Creature — Human Advisor | {3}{G}: Target creature gets +X/+X until end of turn, where X is the number of creatures you control. 2/3 | 
| Quag Sickness | 2B | Enchantment — Aura | Enchant creature Enchanted creature gets -1/-1 for each Swamp you control. | 
| Toxic Deluge | 2B | Sorcery | As an additional cost to cast this spell, pay X life. All creatures get -X/-X until end of turn. |