M:tG card similarity search
U · Legendary Artifact Creature — Robot Dog
Negative — As long as K-9, Mark I is untapped, other legendary creatures you control have ward {1}. Affirmative — {1}{U}, {T}: Target legendary creature can't be blocked this turn. Doctor's companion (You can have two commanders if the other is the Doctor.) 1/1
| Name | Mana | Type | Text | 
|---|---|---|---|
| Familiar Ground | 2G | Enchantment | Each creature you control can't be blocked by more than one creature. | 
| Inkfathom Infiltrator | U/BU/B | Creature — Merfolk Rogue | Inkfathom Infiltrator can't block and can't be blocked. 2/1 | 
| Vine Mare | 2GG | Creature — Elemental Horse | Hexproof (This creature can't be the target of spells or abilities your opponents control.) Vine Mare can't be blocked by black creatures. 5/3 | 
| Sword Coast Serpent | 5UU | Creature — Serpent Dragon | Sword Coast Serpent can't be blocked as long as you've cast a noncreature spell this turn. 6/6 | 
| Unquenchable Fury | Sorcery | Each Minotaur can't be blocked this turn except by two or more creatures. | |
| Benthic Infiltrator | 2U | Creature — Eldrazi Drone | Devoid (This card has no color.) Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.) Benthic Infiltrator can't be blocked. 1/4 | 
| Dread Charge | 3B | Sorcery | Black creatures you control can't be blocked this turn except by black creatures. | 
| Changeling Outcast | B | Creature — Shapeshifter | Changeling (This card is every creature type.) Changeling Outcast can't block and can't be blocked. 1/1 | 
| Prowling Nightstalker | 3B | Creature — Nightstalker | Prowling Nightstalker can't be blocked except by black creatures. 2/2 | 
| Sootwalkers | 2B/RB/R | Creature — Elemental Rogue | Sootwalkers can't be blocked by white creatures. 3/3 |