Forum:Prime Material Dragon effect??

<!-- Please put your content under this line. Be sure to sign your edits with four tildes: ~ -- when the effect of Prime Material Dragon that any effect would inflict damage to a player instead increases their life points by the same amount, does that works with cards that u have to pay life points to activate it's effect or the card, by example the Psychic cards or even the Wall of Revealing Light, I understand that the card says inflict damage,but paying life points it's still inflicting damage to me???.... ~ --