Blub

Amphibious. Blub can breathe air and water.

Standing Leap. Blub's Long Jump is up to 20 feet and its High Jump is up to 10 feet with or without a running start.

The Giant's Crown. Blub’s spellcasting ability is Charisma (spell save DC 20, +12 to hit with spell attacks).

Instinctive Behavior. he does not act with strategy, rather recent damage, the biggest and shiniest thing, or being directed by one of his followers

 Arcane Reservoir. Blub has 90 spell points, which are restored daily at dawn. He spends these points to cast spells (no spell slots require

Multiattack. Blub makes two attacks, or he casts one spell and makes one attack.

Tongue Lash. Melee Weapon Attack: +12 to hit, reach 40 ft., one target.
Hit: 25 (3d12 + 6) bludgeoning damage, and the target is grappled (escape DC 18). Until the grapple ends, the target is restrained, and Blub can pull it up to 30 feet toward himself.

Bite. Melee Attack Roll: +3, reach 5 ft. Hit: 5 (1d6 + 2) Piercing damage. If the target is a Medium or smaller creature, it has the Grappled condition (escape DC 11).

Swallow. The frog swallows a Small or smaller target it is grappling. While swallowed, the target isn’t Grappled but has the Blinded and Restrained conditions, and it has Total Cover against attacks and other effects outside the frog. While swallowing the target, the frog can’t use Bite, and if the frog dies, the swallowed target is no longer Restrained and can escape from the corpse using 5 feet of movement, exiting with the Prone condition.

At the end of the frog’s next turn, the swallowed target takes 5 (2d4) Acid damage. If that damage doesn’t kill it, the frog disgorges it, causing it to exit Prone.

Devastating Leap (Recharge 5–6).
Blub jumps to a point he can see within 120 feet and crashes down. Each creature within a 20-foot-radius sphere centered on that point must make a DC 20 Dexterity saving throw, taking 45 (10d8) bludgeoning damage plus 22 (4d10) thunder damage on a failed save, or half as much damage on a successful one. Creatures that fail are also knocked prone. A creature directly in Blub’s landing space is grappled (escape DC 18) and restrained until the grapple ends.

Spellcasting. 

• 1st–3rd level: 3–5 points
• 4th–5th level: 6–8 points
• 6th–7th level: 9–11 points
• 8th level: 13 points
• 9th level: 15 points

Knows, 

• Thunderwave, Shatter, Mirror Image, Misty Step
• Lightning Bolt, Tidal Wave, Control Water, Greater Invisibility
• Chain Lightning, Wall Of Water, Mass Suggestion
• Sunburst, Storm Of Vengeance, Power Word Kill (30 points, and very rarely used outside of war or execution)

Spell Swallow.
When Blub is targeted by a spell of 7th level or lower, he can spend 5 spell points to negate the spell’s effect and regain hit points equal to 5 times the spell’s level.

Legendary Actions

Blub can take 3 legendary actions

Hop. Blub moves up to half his speed without provoking opportunity attacks.

Croak . Creatures of Blub’s choice within 20 feet must make a DC 18 Constitution saving throw or take 10 thunder damage.

Cast (Costs 2 Actions). Blub casts a spell, expending arcane points as normal.

Reinforce (1/Day).
When Blub is bloodied for the first time, he emits a massive croak. All creatures not bearing a holy symbol of his within 60 feet must succeed on a DC 18 Wisdom saving throw or become frightened for 1 minute (repeat save at end of turns).

On Initiative 20:

Round 1: 2d6 Grung warriors

Round 2: 1d6 Grung elite warriors (paladins/clerics)

Round 3: 1 Grung high priest