Evasion. If the homunculus is subjected to an effect that allows it to make a Dexterity saving throw to take only half damage, it instead takes no damage if it succeeds on the saving throw, and only half damage if it fails. It can't use this trait if it's incapacitated.

Might of the Master. The following numbers increase by 1 when your proficiency bonus increases by 1: the homunculus’s skill and saving throw bonuses and the bonuses to hit and damage of its attack.