Utilize Dragon-Type monters in your Graveyard with the Skill "Dragonic Fusion"!
"Arkbrave Dragon" banishes all face-up Spell/Trap Cards on your opponent's side of the field. It also lets you Special Summon a level 7 or 8 Dragon-Type monster from your Graveyard.
"Dragon Knight of Creation" has 3 effects, including sending itself to the Graveyard to Special Summon a level 7 or 8 Dragon-type monster from your Graveyard.
A total of 15 types of Cards: 1 SR, 13 R and 1 N.