>>556086894-6 evolution line is CRAZY. At least make it 4-5
Energy Loto with only fire energy??? At least use some special energy, DTE is perfect for Maushold's attack, for it to be worth the 3 copies you play. If not then replace them with Earthen Vessels (2 is enough)
I haven't tried Bombardier ex but I reckon playing Basculin is better. Especially since you're already playing Buddy Poffins. Unless you're also using the bird to attack, which I don't get why you would
Roxanne would help with slowing down your enemy
Maybe Defiance Vest or Vengeful Punch for some extra HP/punch, don't know if it'll help much
These are just suggestions since I'm not the one playing the deck and you know what you're trying to do better than I do, so feel free to ignore anything you deem unnecessary