Diminish Ability

You touch a willing creature, and bestow upon it a temporary magical curse. Choose one of the following affects; this affects the willing target until the spell ends. 

Mouse's Hide. The target had disadvantage on constitution checks. It's maximum hit points are reduced by 2d6. This affect is undone once the spell ends. 

Flea's Strength. The target has disadvantage on strength checks and its carrying capacity is halved. 

Elephant's Grace. The target has disadvantage on dexterity checks and its fall damage doubles. 

Blob Fish's Splendor. The target has disadvantage on charisma checks. 

Turkey's Cunning. The target has disadvantage on intelligence checks. 

Pigeon's Wisdom. The target has disadvantage on wisdom checks.