Thankfully, most decks accomplish this feat without even trying
If you don't, create a Treasure token.Whenever you cast a spell you don't own, put a +1/+1 counter on each Scout, Pirate, and Rogue you control
Crowley, the Magistus of Grimoires X DARK Level 4 [ Spellcaster / Effect ] ATK 1800 DEF 1000 You can send 1 Spellcaster monster from your hand or face-up field to the GY
He led the Shadow Riders in attacking the school to try and make that happen, and it all led to a final showdown against Jaden, where Kagemaru would Summon the three Sacred Beasts
By detaching an XYZ material from this card you can take control of any monster your opponent controls, at the expense that Number 11: Big Eye cant attack the turn you activate this effect
Flamethrower Counter Trap Card Activate only if you control the monster with the highest ATK on the field