Everyone favorite ( to be or kill) hero, Glowgob, is currently on sale in Wrath of Heroes. Thanks to a vote yesterday, he was chosen by a large majority for the honor of a sale. I would not have voted for him, but that's because I am selfish and wanted Felicia.
Anyway, until Saturday at 9am (EST I assume) he will cost 124 Gems or 48,000 gold. That's down from 155 and 60,000. He is one of the most valuable Heroes at the moment, so if you have been on the fence it might be a good time to buy.