aboss

2 attacks

Spellcasting. The [monster name] is a 20-level spellcaster. Its spellcasting ability is [20] (spell save DC 8, +8 to hit with spell attacks). The [aboss] has following [class name] spells prepared:
Cantrips (at will): [light beem], [medeor  shower] 
1st level (8 slots): [dark beem], [frost charge] 

 3 attacks

claw. Melee  Attack: +10 to hit, range 13 ft.,  (10d8 + 5) slashing damage. 

bite. melee Attack: +15 to hit, range 10 ft.,  (12d12 + 10) peircing damage.

tail. melee attack +10 to hit, range 10 ft ( 8d8 + 8 blugening damage and it will knock you back 20 ft doing 2d4 of damage

it will fly around to your back and attack sometimes

Enter the description for how legendary actions work for your monster here.

Legendary Action Name (Costs 3 Actions + it will have to rest for a wile.). it will roar and a electric shock will blast out and do a 20d12 of damage and knock everything back 30 ft

Enter the description for how mythic actions work for your monster here.

Mythic Action Name (Costs # Actions). Enter the description for your mythic action.