Cult of the Dragon Invoker

Draconic Pact. Spells are automatically cast at the highest available spell slot.

Draconic Devotion. The Cult of the Dragon Invoker has advantage on saving throws against being charmed or frightened.

Frightful Presence. When the Cult of the Dragon Invoker takes their Tiamat Avatar form, creature's within 30ft. that can see or hear them must succeed on a DC 15 Wisdom saving throw or become frightened for one minute.

A frightened creature can repeat its saving throw at the end of each of its turns to end the effect on a successful saving throw.

Draconic Champion (1/long rest). When the Cult of the Dragon Invoker is reduced to 0 hit points, it drops to 1 hit point and can use Tiamat's Avatar feature for one minute.

Spellcasting. The Cult of the Dragon Invoker is an 8th-level spellcaster. Its spellcasting ability is Charisma (spell save DC 15, +7 to hit with spell attacks).

Cantrips: Eldritch Blast(see below), Thaumaturgy, Guidance

3rd Level Spells(4 slots) Hex, Spirit Guardians, Find Familiar, Guardian of Faith

Eldritch Blast. Ranged Spell Attack: +7 to hit, 150ft., one target. Hit: 10 (1d10+4) force damage. This attack hits twice against the same or separate targets. This attack is considered a cantrip.

Devotion's Favor(1/short or long rest). The Cult of the Dragon Invoker can recover all expended spell slots.

Tiamat's Avatar(1/day) The Cult of the Dragon Invoker can take on the medium-sized form of Tiamat. While in this state, the Invoker gains 33(6d10) temporary hit points.

While these temporary hit points are active, the Invoker's AC increases by 3 and it has resistance to non-magical bludgeoning, piercing, slashing and fire damage.

This state lasts for up to 1 hour or until the Invoker loses its temporary hit points.

Draconic Agility(Avatar Form Only) The Invoker can use its bonus action to Dash.

Draconic Fury(Avatar Form Only) When the Invoker takes damage, it can use its reaction to make an attack against that creature using Eldritch Blast.