Target creature gets -1/-1 until end of turn. Create a 1/1 green Saproling creature token.
The target creature will be on the battlefield when you create the Saproling token, even if itâ€™s about to die for having 0 toughness or lethal damage. Its abilities may affect the tokenâ€™s creation or trigger when the token enters the battlefield. Abilities that trigger this way will resolve after the target creature has died.
If the target creature is an illegal target by the time Fungal Infection tries to resolve, the spell doesnâ€™t resolve. You wonâ€™t create a Saproling token.