Rat is an almost exclusively black creature type. The creature type is only shared with red and only on multicolored cards namely Hellhole Rats, Gobhobbler Rats and Sanity Gnawers.
Outside the Kamigawa block, rats are an occasionally used type for small black creatures in the lower mana ranges. Usually their power and toughness do not exceed 2 and rarely even exceed 1.
Discard
The usual standard ability of rats is a comes into play trigger discarding cards or forcing a card of the opponents hand another way.
- Chittering Rats
- Earsplitting Rats
- Gnat Miser
- Hellhole Rats
- Locust Miser
- Nezumi Shortfang
- Okiba Gang-Shinobi
- Ravenous Rats
- Rotting Rats
- Sanity Gnawers
- Stronghold Rats
Swarms
A common ability among rats is the ability to swarm, meaning that they get a boost of power and/or toughness from other cards with the same name in play.
- Pack Rat
- Pestilence Rats
- Plague Rats
- Relentless Rats
- Swarm of Rats
Nezumi
In Champions of Kamigawa and it's expanding sets, a sentient species of swamp-dwelling Rat people was portrayed as the main black non-human habitants of the plane. In particular they were portrayed as Ninjas but their ranks also include some Samurai.
- Deathmask Nezumi
- Gnat Miser
- Ink-Eyes, Servant of Oni
- Kuro's Taken
- Locust Miser
- Marrow Gnawer
- Nezumi Bone-Reader
- Nezumi Cutthroat
- Nezumi Graverobber/Nighteyes the Desecrator
- Nezumi Ronin
- Nezumi Shadow-Watcher
- Nezumi Shortfang/Stabwhiskers the Obious
- Okiba-Gang Shinobi
- Skullsnatcher
- Throat Slitter
Other Rats
- Bog Rats
- Carrion Rats
- Crypt Rats
- Dirty Wererat
- Disease Carrier
- Diseased Vermin
- Gobhobbler Rats
- Infected Vermin
- Muck Rats
- Rabid Rats
- Rats of Rath
- Razortooth Rats
- Sewer Rats
- Zodiac Rat