M:tG card similarity search
2U · Instant
Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.) Counter target spell unless its controller pays {3}.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Kuro, Pitlord | 6BBB | Legendary Creature — Demon Spirit | At the beginning of your upkeep, sacrifice Kuro, Pitlord unless you pay {B}{B}{B}{B}. Pay 1 life: Target creature gets -1/-1 until end of turn. 9/9 | 
| Declaration of Naught | UU | Enchantment | As Declaration of Naught enters the battlefield, choose a card name. {U}: Counter target spell with the chosen name. | 
| That Which Was Taken | 5 | Legendary Artifact | {4}, {T}: Put a divinity counter on target permanent other than That Which Was Taken. Each permanent with a divinity counter on it has indestructible. | 
| Autonomous Assembler | 5 | Artifact Creature — Assembly-Worker | Prototype {1}{W} — 2/2 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Vigilance {1}, {T}: Put a +1/+1 counter on target Assembly-Worker you control. 4/5 | 
| Reflecting Mirror | 4 | Artifact | {X}, {T}: Change the target of target spell with a single target if that target is you. The new target must be a player. X is twice the mana value of that spell. | 
| Skulking Knight | 2B | Creature — Zombie Knight | Flanking (Whenever a creature without flanking blocks this creature, the blocking creature gets -1/-1 until end of turn.) When Skulking Knight becomes the target of a spell or ability, sacrifice it. 3/3 | 
| Skyshroud Cutter | 3G | Creature — Beast | If you control a Forest, rather than pay this spell's mana cost, you may have each other player gain 5 life. 2/2 | 
| Jade Guardian | 3G | Creature — Merfolk Shaman | Hexproof (This creature can't be the target of spells or abilities your opponents control.) When Jade Guardian enters the battlefield, put a +1/+1 counter on target Merfolk you control. 2/2 | 
| Onyx Talisman | 2 | Artifact | Whenever a player casts a black spell, you may pay {3}. If you do, untap target permanent. | 
| Delraich | 6B | Creature — Horror | You may sacrifice three black creatures rather than pay this spell's mana cost. Trample 6/6 |