In non-duelist-related tech, the manga took place in 1996-98, and when KC's duel-tech wasn't involved had a standard 90s tech level, with VHS tapes and the occasional flip phone
Trainers Pokmon and Stellar Tera Pokmon ex join returning and newly discovered Mega Evolution Pokmon ex, including some with special artwork showing off their biggest and boldest attacks
During either players turn, if Priestess is targeted with a card effect, the player can send one Effect Monster they control to the graveyard, then add 2 Blue-Eyes monsters with different names from the deck to the hand
Core deck archetypes: Sacrifice, graveyard matters, Yawgmoth, elves, zombies, and midrange
EvokeExile a black card from your hand
Witch Enchanter and Boggart Trawler are shockingly my fav of the cycle, but I think almost all of them are very playable