Sources
CR
Type
Size
Alignment
Movement

Diviner Archmage

Medium Humanoid (wizard), Neutral

Armor Class 16
Hit Points 176 (32d8 + 32)
Speed 30 ft.
STR
10
+0
DEX
16
+3
CON
12
+1
INT
20
+5
WIS
15
+2
CHA
16
+3
Skills Arcana +15, History +10, Insight +7, Investigation +10, Perception +7
Senses passive Perception 17
Languages all
Challenge 15 (13,000 XP)

Traits

Magic Resistance. The archmage has Advantage on saving throws against spells and similar effects.

Spellcasting

Spellcasting. The archmage casts one of the following spells, using Intelligence as the spellcasting ability (spell save DC 18):

At will: Detect Magic, Detect Thoughts, Mage Armor (included in AC), Mage Hand, Mind Spike (level 4 version), Prestidigitation

1/day each: Foresight (cast before combat), Telepathy

2/day each: Scrying, Sending

Protective Magic (3/Day). The archmage casts Counterspell or Shield in response to the spell's trigger, using the same spellcasting ability as Spellcasting.

Actions

Multiattack. The archmage makes four Arcane Burst attacks. It can replace one attack with a use of Spellcasting to cast Mind Spike (level 4 version).

Arcane Burst. Melee or Ranged Attack Roll: +10, reach 5 ft. or range 150 ft. Hit:24 (3d12 + 5) Force damage.

Lore

Masters of Magic