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 cant use this trait if its incapacitated.
In combat, the homunculus shares your initiative count, but it takes its turn immediately after yours. It can move and use its reaction on its own, but the only action it takes on its turn is the Dodge action, unless you take a bonus action on your turn to command it to take another action. That action can be one in its stat block or some other action. If you are incapacitated, the homunculus can take any action of its choice, not just Dodge.
The homunculus regains 2d6 hit points if the mending spell is cast on it. If you or the homunculus dies, it vanishes, leaving its heart in its space.
Force Strike. Ranged Weapon Attack: your spell attack modifier to hit, range 30 ft., one target you can see. Hit: 1d4 + 2 (PB) force damage.
Reactions
Channel Magic.The homunculus delivers a spell you cast that has a range of touch. The homunculus must be within 120 feet of you.