This staff can be wielded as a magic quarterstaff that grants a +2 bonus to attack and damage rolls made with it. While you hold it, you gain a +2 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.

Warden's Blessing. Once per day, you can create or negate a 100 ft. square of difficult terrain over the course of 1 minute. When near Erdenjardin, you can calm the seas and wind and submerge the stones to allow any vessel safe passage to the island or enrage the storm and raise jagged stones to protect the island.

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