Your light team is actually quite good.

2 Atk debuffs (-15% and -20%), 1 Def debuff (-15%) that can can stack with Sniper shot for an other -20%/-20%, add some regen/heal and artemis to deal damage.

Sure, you're not using Svarog, but if you don't have SR fire kamis... Your light team is probably going to be the best team you'll have forquite some time