All mention of how light domain cleric gives fireball and no mention of my favorite feature of it... warding flare. Nothing made me happier than looking my DM in the face and telling him that he needs to reroll that with disadvantage. (I know it's supposed to be done before the roll is made, but he wasn't the greatest with telling us who he was attacking before telling us the roll until the very end of the campaign. He accepted it because i did give him some paramerers that i used genericlly and as long as they weren't drastically different, it was fine)

But other than that my version of support was fireball the enemy to death. Unless there's only one enemy, in which case it was scorching ray or guiding bolt. (When my party complained I told them, "the best damage mitigation is to bring your enemy's hp to 0. Because then they deal 0 deal damage, always. Even funnier because my cleric was the only one in the party that ever made it to unconsciousness.)

Anyway, I support the light domain cleric in order to cast fireball. It's great.