Helena's Nail

Continent: Tapa

Wondrous item, artifact
Monster of God. As an action, a creature may drive the nail into their heart. Vines slowly replace their body, and they gain the following features. If the nail is removed as a Strength saving throw, the creature is no longer a Monster of God, becomes incapacitated, and dies after 6 seconds (1 round). Many Monster of God features require a creature to make a saving throw. The DC for this saving throw is equal to 8 + your Strength modifier + your Proficiency bonus.
This is my Body. Your Strength score increases by +4. This can extend your Strength score above 20. Your movement speed increases by +15 ft. You regain 2d4 hit points at the end of each of your turns, and can not be killed instantly.
Holy Touch. A Monster's melee attacks against Aberrations, Fiends, Undead, and any other creatures that are deemed unholy by the DM deal an additional 3d10 radiant damage. Vine Manipulation. A Monster's melee attacks gain +10 ft. of reach. As an action, they may attempt to wrap a creature within 15 ft. in vines. They must attempt a Strength saving throw or become restrained for 1 minute. They may retry this saving throw at the end of each of their turns. A Monster may add their Strength modifier to their AC until the beginning of their next turn as an action, or half as much (rounded up) as a bonus action or reaction. A partial bonus can stack with another partial bonus once. New Personality. You gain new personality traits, determined by rolling once on each of the following tables. These traits override any conflicting personality trait, ideal, bond, or flaw.
Destroying the Helena's Nail. While Helena's Nail can be destroyed as easily as any other iron nail, though it is markedly immune to weathering. However, any object forged out of the greatest portion of the nail retains its power. The only way to rid the world of the nail's power is for a creature that would be effected by Holy Touch to become a Monster of God, after which the nail is reduced to a typical nail and they lose their ungodliness.