Dion himself could easily helm a mono-white Knights deck, offering a very flickerable token generation and evasion, with a later game ability to pump the team and even blow up a permanent
GX! slowly starts to become insensitive and inappropriate as the cast is plunged into darker and darker situations and the main characters friends start dying though 4Kids never outright states this
These themes are Cyber Style (Cyber Dragons and Cyberdarks) and Ice Barrier
Yet it's a fucking Infernal Spawn of Evil, a 7/7 mighty creature at that, and I absolutely do love how the "Summon Demon" has demon crudely scrawled out with a marker and replaced with Beast
Note that their ultimate is 8 loyalty, so you could drop them, go to 6 loyalty on turn three, and then on turn six, when you have 8, you can ultimate
Once you announce you're casting a spell, no player may take actions until the spell has been paid for