Mad Love's effect as the Vanquish Soul monsters all come equipped with large defense stats
I think the lights emitting from the pine-cone-esque Magic -y things are really cool
Send one monster your opponent controls to the GY
The interesting thing about all the Team Rocket Returns Rocket's Pokemon is that they have unique abilities and attacks while all being Darkness-type
Most monsters in the main deck top out at Level 7 or 8, and theres no way to know if the player has a certain card in their deck unless they its a plot related thing

Aberrant Mind Sorcerer Abhorrent Oculus Acolyte of Affliction Adwal, Breaker of Chains Airlift Chaplain Animal Magnetism Arid Archway Ashiok, Sculptor of Fears Astrid Peth Avenging Druid Barrier of Bones Bashful Beastie Biblioplex Assistant Bison Whistle Blanchwood Prowler Bloodwater Entity Bookwurm Boseiju Reaches Skyward Brazen Buccaneers Break Down the Door Breaking // Entering Calix, Destiny's Hand Call of the Wild Cauldron's Gift Cavalier of Thorns Cemetery Tampering Cenote Scout Champion of Stray Souls Charforger Chrome Courier Circle of the Land Druid Clandestine Meddler Clone Shell Commercial District Conductive Machete Conduit Pylons Corpse Appraiser Curator Beastie Curse of Unbinding Cursed Windbreaker Dakmor Salvage Deadbridge Chant Deeproot Wayfinder Defiant Survivor Defossilize Dire Fleet Interloper Disturbing Mirth Dogged Detective Draugr Thought-Thief Dread Summons Dreadhound Dukhara Scavenger Earth's Mightiest Heroes Eccentric Farmer Eerie Soultender Elegant Parlor Emissary of Sunrise Emry, Lurker of the Loch Enduring Renewal Enigma Sphinx Extract from Darkness Extractor Demon Faerie Dreamthief Fallaji Archaeologist Fated Return Fleeting Memories Foul Watcher Gallifrey Council Chamber Gamekeeper Garland, Knight of Cornelia Gate Colossus
