Keen Smell. The hound has advantage on Wisdom (Perception) checks that rely on smell.
Best Friend. While your Golden is within 100 feet of you, you can communicate with it telepathically.
Good Dog or Bag Dog (1/day). Whenever you finish a long rest, roll a die. If Even you are a Good Dog. As a bonus action, the hound chooses one creature it can see within 30 feet of it. The next ability check, attack roll, or saving throw the target makes in the next hour has advantage. If Odd you are a Bag Dog. As a bonus action, the hound chooses one creature it can see within 30 feet of it. The next ability check, attack roll, or saving throw the target makes has disadvantage.
Spellcasting. The hound is a 3rd-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 13, +5 to hit with spell attacks).
The acolyte has following cleric spells prepared:
Cantrips (at will): Light, Sacred Flame
1st level (3 slots): bless, cure wounds, sanctuary
Bite. Melee Weapon Attack: +5 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 3) piercing damage.
If the target is a creature, it must succeed on a DC: 13 Strength saving throw or be knocked prone.