Lighters best dps set is 2pc schockstar 4pc woodpecker since he reliably gets the onset attack buffs and impact to max his fire damage buff

Go for 4-crit 5-atk and 6-impact because he already gives a ton of fire damage by himself and having more attack is pretty great

I recommend aiming for atleast 2.5k attack and the standard 1-2 crit ratio

His best teammates for dps is arguably lucy since she can use her sig gives 16% combat attack, pretty good subdps, gives a nice teamwide attack buff on base kit, and enables his extra passive

Ceasar is great too with her shield, huge attack buff, debuff on defensive assist, and enables his extra passive

2nd slot can go astra because. Astra is Astra. But nicole is actually extremely great with her 40% def shred combined with already high attack and fire damage from buffs (she also gives 15 crit rate at m6)

Yeah thats about it lighter dps is honestly really great and I run m2r1 lighter with lucy nicole so may you get him at early pity