From DDO wiki
- Planar Focus: Erudition (with Planar Focus of Erudition trinket)
- Set Bonus: Psionic Bonus to Universal Spell Power , , +15
- Planar Focus: Prowess (with Planar Focus of Prowess)
- Planar Focus: Subterfuge (with Planar Focus of Subterfuge)
- Set Bonus: True Seeing, Dodge bonus 3% ,
Further upgrades are accessible at the same vendor, but you only need the first one to access your Planar Conflux set bonus.