This staff can be wielded as a magic quarterstaff that grants a +3 bonus to attack and damage rolls made with it. While you hold it, you gain a +3 bonus to spell attack rolls and the saving throw DCs of your spells.

Celestial Radiance. Your spells which do radiant or lightning damage are automatically upcast by 1 level if possible. In addition, you may reroll 1s when determining damage for spells or attacks that do radiant or lightning damage.

The upcast spell expends any spell slot which is suitable for casting that spell, and the effect which triggers is that of a spell slot 1 level higher. This cannot be used to cast a base leveled spell with a spell slot lower than its spell level, and this cannot be used to cast at a spell level higher than what the caster is capable of.

Binary Star Sign. Double the range and the number of targets for your Cosmic Omen. If used on an attack roll, the second target receives the effect on the first attack roll of their next turn.

World Tree's Blessing. The Enki once again drift through the upper atmosphere around Erden, thanks to you. You may summon one to fly you and your allies to any region on Erden, but they are too reclusive to land in full view of large settlements. An Enki arrives instantly if you are in Erdenjardin or Bardylos, but anywhere else, they arrive after 1d8 + 1 hours. After bringing you to your desired location, the weary Enki departs immediately for Bardylos to feed, so you cannot recall the same Enki shortly after its departure and bypass the wait.

Signature Spells. You have communed with the spirits of Mochraidh (Conjuration), Hallyn (Divination), John Flotsam (Abjuration), and Oskar (Evocation), and they have granted you access to their signature spells. You always have the following spells prepared. The Erdenstab has 7 spirit charges which recharge on a long rest. You may cast any of the signature spells with your own spell slots or by expending 1 spirit charge per spell level. Some of the spells gain a bonus only when cast using spirit charges:

1. Armor of Agathys (Abj) Bonus: Grants 10 temp hp and 5 damage per spell level.
2. Find Familiar (Conj)
3. See Invisibility (Div) Bonus: Grant this effect to 2 additional creatures.
4. Lightning Bolt (Evo) Bonus: Optionally fire a 50 ft line from each hand at an angle of 45 or 90 degrees.
5. Counterspell (Abj)
6. Dimension Door (Conj) Bonus: You may bring a creature from up to 30 ft. away with you, or a creature who starts 5 ft. from you may choose a different endpoint within 30 ft. of yours.
7. Telepathic Bond (Div) Bonus: Cast covertly as an action without verbal, somatic, or material components.
8. Crown of Stars (Evo)

Proficiency with a Quarterstaff allows you to add your proficiency bonus to the attack roll for any attack you make with it.

Notes: Bonus: Magic, Bonus: Spell Attacks, Bonus: Spell Save DC, Versatile, Topple