Beetle

Spellcasting. Beetle is a 8th-level spellcaster. Beetle's spellcasting ability is wisdom (spell save DC 16, +8 to hit with spell attacks). Beetle has the following spells prepared:

Cantrips (at will): Druidcraft, Infestation, Poison Spray, Shillelagh, Thorn Whip, 
1st level (4 slots): Animal Friendship, Beast Bond, Speak with Animals, Jump, Goodberry, Ceremony, Cure Wounds, Fog Cloud, Longstrider, 
2nd level (3 slots): Animal Messenger, Barkskin, Augury, Heat Metal, Lesser Restoration, Locate Animals or Plants, Spike Growth, Summon Beast, 
3rd level (3 slots): Clairvoyance, Conjure Animals, Plant Growth, Speak with Plants, 
4th level (2 slots): Charm Monster, Confusion, Divination, Dominate Beast, Giant Insect, 

Fury of the Small. When Beetle hits a creature with an attack or a spell and the creature's size is larger than his, he can cause the attack or spell to deal 8 extra damage to this creature. Once Beetle uses this trait, he can't use it again until he finishes a short or long rest.

Nimble Escape. Beetle can take the Disengage or Hide action as a bonus action on each of his turns.

Natural Recovery (1/Long Rest). Beetle can regain some of his magical energy by sitting in meditation and communing with nature. During a short rest, he can choose expended spell slots to recover. The spell slots can have a combined level that is equal to or less than 4, and none of the slots can be 6th level or higher.  

Multiattack. Beetle makes two wooden staff attacks. 

Wooden Staff. Melee Weapon Attack: +8 to hit, reach 5 ft., 1 target. Hit: 7 or 8 (1d6 + 4 or 1d8 + 4) bludgeoning damage.