Battlefield Medic

Brother Colm is a Life Cleric optimized for keeping the party alive under pressure. Disciple of Life adds +2+spell level to every healing spell, making Healing Word incredibly efficient as a bonus action. Round 1: Bless the front line. After that: Spiritual Weapon for sustained damage while using bonus actions for Healing Word on downed allies. Save Cure Wounds for out-of-combat healing. Don't sleep on Sacred Flame — 2d8 radiant at this level with no attack roll is solid when you need to save spell slots.