SUCH PACK MANY RAT (Modern)

i added eight two-drops so i survive the early better. door of destinies would lower the chance of the relentless rat spill so ill leave it like this but ill maybe get rid of swarm of rats .
As of now, the chance to draw relentless rats at turn 5 (so my the time i can play the thrumming stone) is at 99,8 % which is fine.
All i rly have to do is mulligan till i have thrumming stone on the start hand and its a near guaranteed kill on turn 5 with Hall of the bandit lord or turn 6 without.

UPDATE
math-crafted:
4 two-drops to get a cheesy pack rat early game.
27 three-drops optimal number to have a guaranteed relentless rat every fifth card for the thrumming stone.
3 four-drops which are only there to get the thrumming stone for the next turn so you can then play your five-drop win con if you haven't won by now.

UPDATE
lets get competitive: Thrumming Stone less of a wincon
-2 hall of the bandit lord cause it gives no mana and doesnt win so often
-3 Diabolic Tutor cause too expensive
4 Cavern of Souls cause duh
4 Go for the throat for disruption
2 Bloodbond March for lategame
4 Infernal Tutor can ripple well and gets Land or Rats well

UPDATE
Is Sphinx of the Chimes possible? (maybe with some kind of reanimation effect like Bloodbond March)(but a third color?)
Is Diabolic Tutor better at the end of the day?
Is Devour in Shadow better than Go for the Throat?(vs artifacts ill swap it anyways but does it make more sense just running it main board for more space in sideboard?
Viable (and maybe unusual) side board options?