Crippling Strikes

Ivy can target specific limbs on an enemy. Each hit on a limb would cause a specific disadvantage/effect.

Arms: If the target is carrying a weapon with this arm or using a two handed weapon the target will have disadvantage on all attacks until healed. 

Legs: The target's movement speed will be halved until healed and disadvantage on dexterity saving throws until healed. 

Head: The target will have disadvantage on ranged spell attacks and concentration checks until healed. 

Torso: The target will have disadvantage on constitution saving throws until healed.