Strategies:
Fusion summon dragon monsters
Fusion summon Buster Blader, the Dragon Destroyer
Use DNA surgery and/or Rebirth Judgement to make all monsters Dragon-type to boosts the ATK of Buster Blader and Buster Blader, the Dragon Destroyer.
Use Tribe-Shocking Virus along with DNA surgery to destroy all face-up monster of that type, plus you might discard Buster Blader and use monster reborn (or something else).
Synchro Buster Dragon effects works too if you can't use DNA surgery
Main monsters:
Fusion monsters, which? Depends.
Secondary monsters: Buster Blader.