Spellcasting. The priestess is a 3rd-level spellcaster. Her spellcasting ability is Wisdom (spell save DC 13, +5 to hit with spell attacks). The acolyte has following cleric spells prepared:

Amphibious. The priestess can breathe air and water.

Martial Advantage. Once per turn, the priestess can deal an extra 7 (2d6) damage to a creature she hits with a weapon attack if that creature is within 5 ft of an ally of the priestess that isn't incapacitated.