Spellcasting (Cleric). The spellcaster’s spellcasting ability is Wisdom (spell save DC 14, +6 to hit with spell attacks). The spellcaster has following cleric spells prepared:

Cantrips (at will): Guidance, Light, Sacred Flame

1st level (4 slots): Bless, Command, Healing Word (might swap out after a long rest depending on circumstances)

2nd level (2 slots): Aid (might swap out for Hold Person, or Lesser Restoration, or prepare ahead with Augury)

Mace. Melee Weapon Attack: +3 to hit, reach 5 ft., one target. Hit: 3 (1d6) bludgeoning damage

Turn Undead (1/short rest). As a Magic action, you present your Holy Symbol and censure Undead creatures. Each Undead of your choice within 30 feet of you must make a Wisdom saving throw. If the creature fails its save, it has the Frightened and Incapacitated conditions for 1 minute. For that duration, it tries to move as far from you as it can on its turns. This effect ends early on the creature if it takes any damage, if you have the Incapacitated condition, or if you die.

Ranged Heal. The sidekick casts Healing Word using the same spellcasting ability as Spellcasting.