Bhurman, Heretic Lifecrafter

When Bhurman, Heretic Lifecrafter enters the battlefield, create X 0/1 blue Homunculus artifact creature tokens, where X is the amount of mana spent to cast Bhurman.
Homunculus creatures you control get +1/+1.
"If creating automatons that behave like living things is acceptable, what is creating actual living things but the next logical step?" -Bhurman