Mind's Desire and Sphere Effects

[serracollector]

My opponent minds desires with say 7 spells, copying it 7 times, bringing forth a slew of spells.  I have 2 golems and a sphere in play.  Even tho it says that you may play the spells without paying their casting costs, are they still affect by the golems and spheres and cost 3 mana each (being non-artifact of course)?  I know this applies to free spells such as Force of will, and misdirection, so does it effect the free spells given from a mind's desire as well?  Thank you.

[Clariax]

Yes, you have to pay any additional costs or cost increases.  Mind's Desire and other such effects say you can play it without paying the mana cost, they do not say without paying any cost.