Spike of Distorted Flesh (5e Equipment)
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Wondrous Item, legendary (requires attunement)
The Spike of Distorted Flesh is a pyramid-shaped spike made from mithril and engraved with characters from an unrecognizable language. If a creature stabs the spike through themself, they must make a DC 20 Constitution saving throw. On a failure, they take 4d10 necrotic damage, 2d10 piercing damage and an aura of death will permeate the air. On a success, they take 2d10 piercing damage and the spike will begin to assimilate itself into the body its new host. The appearance of the creature is disturbing and will cause most people to avoid them. You can use an action to activate the spike, during which time, your body changes into a grotesque monstrosity of exposed bone and stretched flesh. Once you have mutated, you will not be able to revert back to your original form for an hour.
Wing Growth. Wings made of flesh and bone sprout from your back. While you have these wings, your walking speed is 30 feet.
Monstrous Growth. Your body grows, becoming Large and making your strength 22 for the duration. Your clothes and armor grow with you, but your weapons and other equipment do not.
Arm Growth. You grow two arms from your shoulders.