Crystalized Dried Miner Corpse

Undead Resilience (1-Day): Whenever the Crystalized Dried Miner Corpse falls to 0 hit points it falls to 1 hit point instead unless the damage is radiant damage or from a critical hit.

Stone Crusher: The Crystalized Dried Miner Corpse deals twice as much damage to creatures, structures and objects mostly made of stone.

Crystal Growths: Melee weapon attacks of the Crystalized Dried Miner Corpse deal one aditional 1d8 slashing damage (factured in the attacks)

Reflective Crystal Shell (3 uses before breaking): Whenever the Crystalized Dried Miner Corpse is affected by a spell of 6th level or lower the caster must roll a d6, on a 4 or 5 the spell fails to affect the Crystalized Dried Miner Corpse on a 6 the spell is reflected towards the caster, being recast targeting it or with it as the center of the spell area if possible.

Radiance Surge (Only if Reflective Crystal is available): Whenever the Crystalized Dried Miner Corpse would take radiant damage it instead reflects that damage (this effect hapens before damage calculation ignoring effects that would ignore resistance or immunity to radiant damage), all creatures within 60ft of the Crystalized Dried Miner Corpse must succeed in a DC 16 Constitution saving throw taking radiant damage equal to half of the damage that would have been dealt to the Crystalized Dried Miner Corpse instead.

Reverbertating Crystal (Only if Reflective Crystal is available): Whenever the Crystalized Dried Miner Corpse is affected by a sound based effect the effect is recast centered on it with in all directions.

The Crystalized Dried Miner Corpse is not immune to these effects however.

Crystalized Pick Axe Strike: Melee Weapon Attack +7 to hit, 5ft reach, one target, for 1d8+4 piercing damage + 1d8 slashing damage.

Crystalized Slam: Melee Weapon Attack +6 to hit, 5ft reach, one target, for 1d6+4 bludgeoning damage + 1d8 slashing damage.

A creature hit by this attack must succeed a Constitution saving throw DC 14 on a failure its Constitution score is reduced by -1, undead constructs and ethereal creatures that don’t rely on moisture to persist aren’t affected by this effect.

The target dies if this reduces its Constitution to 0. Otherwise, the reduction lasts until the target finishes a short or long rest.

Break the Stone: The Crystalized Dried Miner Corpse can make one additional Crystalized Pick Axe attack on its attack action if the target creature, structure or object is mostly made of stone.