Crawling Heart

Spider Climb. The heart can climb difficult surfaces, including upside down on ceilings, without needing to make an ability check.

Drain. +5 to hit; 1 target; 10(1d10+5) piercing damage; Target must make a DC 18 CON save. On a failure, target takes an additional 5(1d10) necrotic damage, and Hit point maximum is reduced by damage taken.

Cling. The heart attempts to cling to the target, fusing its tendrils to the targets veins. The target must make a DC 17 DEX or STR save (target's choice) to avoid the heart clinging to them. On a failure, the heart clings to the target. The target's movement is lowered by 10 ft. for every heart clinging to it. While clinging, the heart has advantage on its drain attack.

The target may make a DC 17 Acrobatics or Athletics check to disengage itself from the heart. On a success, the heart is plucked free and immediately withers and dies.