Fire Fist Tri-Brigade

Get Eagle on the field asap and start spamming your Fire Fist effects without coughing up your formation spells. Alternatively, use Fraktall or Kerass to send monsters to your GY and banish to link summon. When your opponent's field gets too oppressive, link summon Topologic Zeroboros, special summon a Fire Fist monster where it points to, and have fun resummoning every turn with an ATK boost for every banished card.

I've been workshopping this deck since 2022 and got it to a point where I feel like it's reached its max potential. I'm currently gold in Master Duel with this deck and slowly working my way up.