@Raichao, what's the theme?
I restarted Diamond today. Started, named Jenny, did all the stuff. Went to the lake, got the Pokedex, and got Pokeballs from Lucas. Caught a Starly and Bidoof to trade to Pearl for some eggs. Hatched them, trained to lvl 5 on Route 201. Got to Jubilife, been playing about an hour;
lvl 8 Naïve - Flamethrower/Outrage/Dragon Dance/Dragon Rage
lvl 8 Adamant - Waterfall/Ice Ball/Curse/Mud Slap.
I'll update after I beat Roark. Feel free to PM me with nicknames for them, they are both male.
I passed through Jubilife, went north beating those trainers. Went to Orebourgh, got both to lvl 13 after beating all the trainers. Went to the Mine, Charmander getting to lvl 15. Met Roark in the Mine, went to the Gym, and Mudkip solo'd the trainers and Roark with Waterfall. After I got the badge, I went to the recently blocked off part of Orebourgh Gate. Got all the items, and helped Lucas in Jubilife. Beat the trainers, both evolved, got to Floaroma town, and beat the TG Grunts at the Valley Windworks. Healed, and went to Eterna Forest, beating all the trainers with Marshtomp. Got to Eterna City with Marshtomp at lvl 22 and Charmeleon at lvl 20. Charmeleon beat all the Gym trainers, reached lvl 22 before challenging Gardenia. OHKO'd all of them with Flamethrower, Charmeleon jumped to lvl 23.
lvl 23 Naïve - Flamethrower/Outrage/Dragon Dance/Dragon Rage
lvl 22 Adamant - Waterfall/Ice Ball/Curse/Mud Shot
Been playing about 2 and a half hours.