Rampage. When the gnoll reduces a creature to 0 Hit Points with a melee Attack on its turn, the gnoll can take a bonus Action to move up to half its speed and make a bite Attack.

Spellcasting (Gnoll form only). The priest is a 5th-level spellcaster. Its spellcasting ability is Wisdom (spell save DC 15, +5 to hit with spell attacks). The priest has the following spells prepared:

Cantrips (at will): infestation

1st level (4 slots): ray of sickness, hex, snare, cause fear

2nd level (3 slots): ray of enfeeblement, blindness/deafness

3rd level (2 slots): animate dead, conjure animals, life transference

Bite. Melee Weapon Attack: +2 to hit, reach 5 ft., one target. Hit: 3 (1d6) piercing damage.

Change Shape (Recharges after a Short or Long Rest). The priest polymorphs into a giant hyena. This form lasts up to 1h. It deals an extra 1d6 necrotic damage with each attack.

Revert to gnoll form. He drops his giant hyena wild shape.

Move half of its speed and make one attack, or order an ally to attack.

Alternatively, transform into his giant hyena wild shape.