Living Floating Disk (5e Creature)
From D&D Wiki
Living Floating Disk
Small construct, chaotic neutral
Damage Resistances cold, fire, force, lightning, necrotic, radiant, thunder; bludgeoning, piercing, and slashing from nonmagical attacks
Antimagic Susceptibility. The disk is incapacitated while in the area of an antimagic field. If targeted by dispel magic, the disk must succeed on a Constitution saving throw against the caster's spell save DC or fall unconscious for 1 minute.
Ram. Melee Weapon Attack: +4 to hit, reach 5 ft., one target. Hit: 5 (1d6 + 2) force damage.
This living spell occurs when floating disk is miscast, conjuring a disk of force that begins to go awry. During the spell's duration it misbehaves, flipping over at the most inopportune moments (sending bags of treasure down a chasm, for example) When the spell ends, the disk goes rogue and flees its creator.
Variant: Hasted Floating Disk
A hasted floating disk has a CR of 1 (200 XP). Some living floating disks are created deliberately for combat in a concoction of floating disk and haste. This rapidly spinning construct zips around like a buzzsaw. It has an AC of 18, a Dexterity of 19 (+4), and a fly speed of 60 feet. It has the following action.
Multiattack. The disk makes two ram attacks.