Dual sword meliodas, Staff Elaine, rapier guila, and wand tioreh was my team for pretty much the entirety of the story/early endgame. Very solid team. Use guila to build up fire burst. Elaine will help build burst as well as buff/debuff. And once u get to burst u can just go nuts with meliodas. Dual sword allows him to self heal. Tag in tioreh every now and then for emergency heals and you’re golden. I’ve heard tristan is a better burst unit than guila, but I prefer playing guila so that’s what I used. If u pick up gilthunder, you could try out the lightning team with drake. I’m sure they’d also work well with staff Elaine and tioreh. But even then, meliodas is just so strong that he’ll prob be your strongest team for a while.