Touch of Gravidity

The caster makes a melee spell attack on the target. On a hit, the target muat pass a DC 15 wisdom save. Targets without the natural ability to carry young do so at advantage. On a successful save the spell has no effect. On a fail the spell affects the target as below. 

For the spell duration the target has disadvantage on ability checks, attack rolls, and saving throws that use Strength, Dexterity, or Constitution. Their movement speed is reduced by 15 feet.

Whenever the target is healed via a potion or magical effect, the amount of health gained is doubled.