So far in TDS i've seen 4 different power sources. Healer Power Source Ocean Purification Stone from Caverns of Endless Song Caster Power Source Combine Power Shard from Degmar Tank Power Source Geomantic Steelstone from Combine Dredge Crappy All Around Power Source Thaell Ew Totem from Thuliasaur The top 3 power sources I listed are great for their classes. They are huge upgrades to Xorbb's Caged Hatred. They also are somewhat common drops. The Ocean Purification Stone has dropped for me on about half of my named kills. Either I just haven't found the melee power source yet or we got screwed. Is there a 5th power source that i'm missing or am I stuck using the crazy rare Xorbb's Caged Hatred still?