Drake Seals are earned in Tier 2 and beyond epic dungeons and can be exchanged for gear in the Seven Suns Market.
These dungeons include:
- Lair of the Pirate King (Epic)
- Temple of the Spider (Epic)
- The Frozen Heart (Epic)
- Caverns of Karrundax (Epic)
- Spellplague Caverns (Epic)
- Dead Vault (Epic)
- Castle Never (Epic)