Bob the Vacuum

Beep of Death. Everyone within 5 feet of bob take 2d8 Damage (No Type)

Spellcasting. Bob is a 1-level spellcaster. Its spellcasting ability is Constitution (spell save DC 9, +3 to hit with spell attacks). Bob has following Wizard spells prepared:
Cantrips (at will): True Strike, Blade ward, Poison spray.
1st level (3 slots): False Life, Burning Rammer (Burning Hands)

Multiattack. Bob Uses Sweepers twice, and Grinder once. He can alternately  use Fling o sweep once.

Sweepers. Melee Weapon Attack: +6 to hit, reach 1 ft., 1 target. Hit: 13 (3d4+ 7) Force damage. 

Fling o Sweepers. RangedWeapon Attack: +5 to hit, range 2/50 ft., Hit: 14 (2d8 + 6) Necrotic damage.

Grinder. Melee Weapon Attack. +5 to hit, reach 5 ft., 1 target, Hit: 12 (3d6 + 3) Slashing damage. If bob scores a critical hit, he grinds the target up and the target dies.

Sweep up. When someone hits bob, they must make a DC 8 Dexterity saving throw or be Blinded, restrained, and grappled.

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

Bobin’ For apples (Costs 2 Actions). Bob Calls on 3 Animated Apples.

Clean Up (Costs 4 Actions). Bob con force a creature to drop all the stuff that it’s carrying. They can’t pick it back up until Bob Dies.

Poison!!! Bob casts True strike and Poison Spray!!!!