Here is where it gets crazy - you can power up a Regi Pokemon, play Thorton, transform that Regi Pokemon into an Amazing Rare Yveltal (Shining Fates), slap on an additional Energy, and OHKO whatever you want
5D's" was airing will understand, but there was a super high-end deck called [Infernity] that mastered 3 copies of Trishula, which cost over 5,000 yen per card at the very least (at the time, "Infernity Archfiend", which was essential at 3 copies, also cost over 5,000 yen each)
Use Trailblazing Historian or The Fire Crystal to give Jumbo Cactuar haste and Ragged Playmate or Rogue's Passage to make it unblockable so you can kill your opponent with one attack for 10,000 damage
Their cost is 0 each
The main draw is Voltage Burst