Bryant Hedgespinner

Remnant Power. Bryant Hedgespinner is still imbued with the energy of a dead nature god. This divine power surges through him, erupting in uncontrollable outbursts. At the end of his turn, roll on the following table, and discover what effect this wild magical energy has: 6
1 Magical Explosion! The divine energy bursts from Bryant's gnarled flesh. Any creature standing within 15 feet must make a DC 16 Dexterity saving throw, taking (3d8) force damage on a failed save, or half as much damage on a successful one.
2 Healing Glow! The glow of verdant green life wreathes Bryant for a moment. He recovers (1d8) at the start of his next turn. If he's reduced to 0 hit points before then, this effect still takes place, bringing him back to life.
3 Spines! Sharp spines erupt all over Bryant's flesh, before subsiding. On his next melee attack, Bryant deals an extra (1d8) piercing damage.
4 Bark-though! Studded with nodules of twisted bark already. Bryant's skin starts to form new layers of though rind. For the duration of the next turn, Bryant's AC increases by 2.
5 Tendrils! Vines sprout from Bryant's body, seeking out a victim to ensnare and choke. All creatures within 5 feet of Bryant must succeed on a DC 16 Strenght saving throw or become grappled, until they succeed on a subsequent DC 16 Strenght check.
6 Power Failure! The energies collecting in Bryant detonate suddenly, and unexpectedly inside him. Bryant takes (1d8) force damage.

Spellcasting. The owlbear used to be a druid and can still cast the following spells without requiring verbal or somatic components. He is a 5th level spell caster, and uses Wisdom as his casting ability (spell save DC 13, +5 to hit).The Owlbear has the following druid spells prepared:
Cantrips (at will): Guidance, Resistance, Thorn Whip, Thunderclap
1st level (4 slots): Earth Tremor, Longstrider, Thunderwave
2nd level (3 slots): Animal Messenger, Barkskin, Summon Beast
3rd level (2 slots): Call Lightning, Erupting Earth

Multiattack. Bryant makes two melee attacks.

Bark-skinned Arm. Melee Weapon Attack: +4 to hit, reach 5 ft., one creature. Hit: 5 (1d6+2) bludgeoning damage.