M:tG card similarity search
4 · Artifact
{4}, {T}: Whenever target creature deals combat damage to a non-Wall creature this turn, destroy that non-Wall creature. When the targeted creature leaves the battlefield this turn, sacrifice Acidic Dagger. Activate only before blockers are declared.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Piper Wright, Publick Reporter | 1U | Legendary Creature — Human Detective | Whenever Piper Wright deals combat damage to a player, investigate that many times. (To investigate, create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.") Whenever you sacrifice a Clue, put a +1/+1 counter on target creature you control. 1/2 | 
| Archpriest of Shadows | 3BB | Creature — Human Warlock | Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following abilities until end of turn.) Deathtouch Whenever this creature deals combat damage to a player or battle, return target creature card from your graveyard to the battlefield. 4/4 | 
| Mystery Key | 1U | Artifact — Equipment | When equipped creature deals combat damage to a player, sacrifice Mystery Key. If you do, draw three cards. Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.) | 
| Throat Slitter | 4B | Creature — Rat Ninja | Ninjutsu {2}{B} ({2}{B}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.) Whenever Throat Slitter deals combat damage to a player, destroy target nonblack creature that player controls. 2/2 | 
| Graceful Antelope | 2WW | Creature — Antelope | Plainswalk (This creature can't be blocked as long as defending player controls a Plains.) Whenever Graceful Antelope deals combat damage to a player, you may have target land become a Plains until Graceful Antelope leaves the battlefield. 1/4 | 
| Hammer of Ruin | 2 | Artifact — Equipment | Equipped creature gets +2/+0. Whenever equipped creature deals combat damage to a player, you may destroy target Equipment that player controls. Equip {2} | 
| Initiate's Companion | 1G | Creature — Cat | Whenever Initiate's Companion deals combat damage to a player, untap target creature or land. 3/1 | 
| Hope of Ghirapur | 1 | Legendary Artifact Creature — Thopter | Flying Sacrifice Hope of Ghirapur: Until your next turn, target player who was dealt combat damage by Hope of Ghirapur this turn can't cast noncreature spells. 1/1 | 
| Ashling, the Extinguisher | 2BB | Legendary Creature — Elemental Shaman | Whenever Ashling, the Extinguisher deals combat damage to a player, choose target creature that player controls. The player sacrifices that creature. 4/4 | 
| Noble Purpose | 3WW | Enchantment | Whenever a creature you control deals combat damage, you gain that much life. |