I put this into the gossip section because i don't want to see any decklists or long combo explanations. I hope Just some nostalgia =).
I start with those two:
At first i was thinking about my mono nature earth dragon deck. It wasn't whether extremly powerful nor really bad at all. Balgazaramas was just such a fun card to play with, every attack is so exciting with it. Abd a lot of ocg earth dragons actually have a beautiful art design imo. 'Special summoning Diruga Vejida with Kachua always out a smile on my face, at least once per duel.
Well it isn't actually nostalgia but i recently build my silent skill deck some weeks ago. Nariel is a fun blocker to me. No dynamic gameplay at all. Feels like control but it isn't actually because Nariel and Mystic Magican can be removed easily. I can not remind of a deck that has been less fun than this.