1) use invoker to cast forged spirits
2) use spiked carapace with nyx assassin
3) attack nyx with forged spirits

result: Invoker (hero) gets the stun+damage

expected: the forged spirit should take that stun+dmg

not sure how it works with other summon units, but i just tested this and i dont think this is working properly, as the description sais it stuns+damages the source of damage and in this case should be the forged spirits.