Ancient Winter Tao

Legendary Resistance (3/day). If the Tao fails a saving throw, it can choose to succeed instead.

Amphibious. The Tao can breathe both air and water.

Multiattack. The Tao makes two bite attacks. It can replace one bite attack with two icicle spit attacks.

Bite. Melee weapon attack: +15 to hit, reach 15ft., one target. Hit: 18 (2d10 + 7) piercing damage plus 13 (3d8) cold damage.

Icicle Spit. Ranged weapon attack: +15 to hit, Range 90ft., One target. Hit 12 (1d6 + 9) piercing damage plus 3(1d6) cold damage.

Blizzard Breath. The Tao gathers the chill wind of the winter court in it's maw and unleashes it on a point within 300ft. The wind hits the spot and erupts into a blizzard with a 60ft radius centered on the point the tao chose. All creatures of the tao's choice in this area must make a constitution saving throw DC 24 or take 32 (7d8) slashing damage and 32 (7d8) cold damage, and is deafened and blinded until the start of the tao's next turn. On a successful save the creatures take half damage and are not blinded or deafened.

Spellcasting. The tao is a natural druid with the ability to cast the following spells requiring no components and using wisdom as the spellcasting ability. ( spell save DC 24, +16 to hit with spell attacks):

at will: gust, druidcraft, guidance, elemental bane.

1/day:  entangle, spike growth, sleet storm, ice storm, hold person. fire shield (cold shield only), tree stride, transport via plants, plane shift.

Change Shape. The Tao magically transforms into any creature that is Medium or Small, while retaining its game statistics (other than its size). This transformation ends if the Tao is reduced to 0 hit points or uses a bonus action to end it.

Fey Step. The Tao magically teleports to an unoccupied space it can see within 60 feet of it, and all creatures within 30ft must make a wisdom saving throw DC 24 or be charmed by the tao for one minute. the creatures can repeat this save at the end of their turns. creatures that make this saving throw are immune to this effect for the next week.

The Tao can take 3 legendary actions, choosing from the options below. Only one legendary action option can be used at a time and only at the end of another creature’s turn. The tao regains spent legendary actions at the start of its turn.

icicle spit. The tao makes one icicle spit attack.

spellcasting (Costs 2 Actions). The tao casts a spell.

Winter's chill (Costs 3 Actions). the tao exhales a 30ft cone of frost. all creatures in the cone must make a strength save DC 24 or take 9 (2d8) bludgeoning damage and 9 (2d8) cold damage and be knocked prone.