Thrumming stone / Relentless rats combo deck
Relentless Rats + Thrumming Stone
Supported by some legendary rats and two types of dudes
Aether Vial lets you put free critters down, I find myself using it to summon something cheap early on for cull the weak, or once it cooks to turn 3 another possibly thrummed rat, or a disciple of bolas for draw purposes
I find myself not needing to put multiple copies of the legendary rats / skemfar (who is an honorary rat here ig) in the deck because I end up with Pyre of Heroes in my hand constantly. You can save your mana for relentless and pack rats instead of summoning the big boys.
With Pyre of Heroes you can-
2 Mana Cost:
Pack Rat
sacrifice to save 1 mana and search for v
3 Mana Cost:
Relentless Rats / Karumonix
sacrifice to save 2 mana and search for v
4 Mana Cost:
Ashcoat (relentless rats/pack rat counters are effectively doubled for attacks)
Disciple of Bolas (sac a rat to be able to draw whenever, then turn him into marrow-gnawer)
Skemfar (so at any time you could sac a relentless rat to bring a potential wincon out)
sacrifice to save 3 mana and search for v
5 Mana Cost:
Marrow-Gnawer (DOUBLE your rat creature type count, pair with the 2nd ashfur for stupidity) (hes the giant rat that makes all of the rules)
Typhoid rats are here cause 1 mana and death touch. Disciple of Bolas is here to be able to draw sometimes, can be cull fodder too. Pack Rat gets powerful fast, only costs 2.
Snow Covered Swamps are here only because I used to run the prototype of this deck with Extraplanar Lens, cant be fucked to change it
Pivotal to the experience of the deck is that I proxied and edited out the art of most cards to be cute rat pictures. Imgur link in comments ^^