My opponent cast Housemeld on my Pyrogoyf and when the enchantment version of pyrogoyf entered it triggered and did 5 damage to me, since there were 5 card types among cards in graveyards and its power would have been 5. However, according to rule 208.3 a noncreature permanent can't have power or toughness so Pyrogoyf should have done no damage. My platform is PC (windows).