I musta killed 10 Goblin Wizards in Perma today and none droped the heart. im a 40 wiz and it took me 30 mins to get the Heart of Fire in SOL A. In my opinion the Heart of Frost is the most difficult because of the rarity of the Gob Wizards.
PS: However i did get 2 runed circlets )
I believe the real benefit of being able to do a self port to Hate comes from getting late comers to join the raid. The wizards benefit by not having ...