Archmage of Evocation

Careful Casting. Yuri's spells do not affect allies unless the ally wishes to be affected by the damage from his spells and spell effects.

Enhanced Magic Resistance. The archmage has advantage on saving throws against spells and other magical effects. He also has resistance to spell damage and all elemental damage.

Bombardment. When you roll damage for a spell and roll the highest number possible on any of the dice, choose any or all of those dice, roll it again and add those rolls to the total damage.

Elemental Savant. Blessed by the elemental forces in the world; Yuri's elemental damage from his spells and cantrips bypass resistances to that damage type. 

Arcane Wrath. When Yuri drops below half his total hit points, his arcane wrath is ignited, causing all his spells to impose disadvantage on their saves automatically. 

Element Arrow. Ranged Magic Attack: +10 to hit, range 10/120 ft., one target. Hit: 25 (4d10 + 5) cold, fire, lightning, or thunder damage (casters choice before attacking).

Invocation Magic. The archmage is an 18th-level spellcaster. Its spellcasting ability is Intelligence (spell save DC 18, +10 to hit with spell attacks).

Signature Spells: The archmage can cast Shield, Detect Magic, Identify, and Misty Step at will and has the following spells prepared:

Cantrips (at will): Dancing lights, Mage Hand, prestidigitation, Minor illusion

1st level (4 slots): Cure Wounds, Mage Armor, magic missile, Guiding Bolt

2nd level (3 slots): Gust of Wind, Mirror Image, Shatter, Heat Metal

3rd level (3 slots): Counterspell, Fly, Lightning Bolt,  Call Lightning, Erupting Earth Dispel Magic, Fireball, Pulse Wave

4th level (3 slots): Ice Storm, Fire Shield, Stoneskin, Wall of Fire, Storm Sphere

5th level (3 slots): Cone of Cold, Wall of Stone, Telekinesis, Flame Strike, Immolation

6th level (2 slots):  Chain Lightning, Disintegrate, Wall of Ice, Sunbeam

7th level (1 slot): Teleport, Whirlwind, Magnificent Mansion, Fire Storm, Prismatic Spray

8th level (1 slot):  Earthquake 

9th level (1 slot): Meteor Swarm, Prismatic Wall

Misty Step. Teleport 30 feet to an unoccupied space you can see.

Shield. +5 to AC until the start of your next turn.