Kagoro Oblation Swarm

Who cares if I finish at 4 health as long as they finish at 0? Flame Eyed Reika and Detonation Pact trade my spare life for extra bodies and burn, Cinderwake Pursuer gets Charge on 3-card turns, and Kagoro of the Burnt Path pays 2 IKZ for +2 attack to join the dogpile! Big W.

Deck

Spend my own life for extra bodies, clear blockers, and swing with Kagoro too!

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Early turns
I dump two 1-drops a turn — Cinderwake Seer, The Calm Assassin, Tomi — and pay 3 health on Flame Eyed Reika to cheat another 2-drop into my Alley.
Middle turns
Omen Peddler snipes their 2-health guy from the Alley while Battle Tempo, Shurra pings on leader hits. Drop two entities, then pay 2 IKZ so Kagoro swings for 2 alongside Cinderwake Pursuer!
Closing
Steel Talon and Scarlett charge in for 3 and 4, Black Jade Warlord sacrifices after attacking for +2 more attack, and Detonation Pact plus Fire Orb end it.

I keep two 1-cost bodies, or a 1-drop with Flame Eyed Reika or Omen Peddler. Throw back hands with multiple 4-plus cards.

Play him in the Alley to kill the 2-health entity that wanted to eat my tapped 1-drops.
3 leader health puts a 2-cost or cheaper entity into my Alley tapped for free.
Charge and Bloodlust for 3 instant damage to their leader.
Charge, and she takes Infiltrate +1 when 4 unblockable damage wins the race.
1 IKZ and 1 life for 2 leader damage — also counts toward Cinderwake Pursuer's two other cards!

Play your entities BEFORE activating Kagoro of the Burnt Path! Using his ability first gives 0 attack, which is peak NPC behavior.
Cinderwake Seer hurts itself every turn, so portaling through Ragefire Gate always buffs it.
Remember tapped guys can get attacked next turn: let Omen Peddler clear their attacker before swinging small bodies into bad trades.