Source: Tal'Dorei Campaign Setting Reborn

Staff, legendary (requires attunement by a spellcaster)

A powerful relic passed down from generation to generation of Ashari leaders, the Spire of Conflux was lost over three centuries ago when Joran the Sea-Speaker, a respected leader of the Water Ashari, was devoured by a demon of the Abyss. It was rediscovered by the legendary druid Keyleth of Zephrah, Voice of the Tempest. However, rumors swirl that she is seeking another hero to wield it — one who can travel the land and do good in small ways as she once did.

Dormant. While the Spire of Conflux is in a dormant state, the staff has 8 charges and regains 1d4 + 2 expended charges daily at dawn. While holding the staff, you can expend 1 or more of its charges to cast one of the following spells from it, using your spell save DC: Burning Hands (1 charge) or Fireball (3 charges).

Additionally, while holding this staff, you have a +1 bonus to spell attack rolls and your spell save DC increases by 1.

Awakened. When the Spire of Conflux reaches an awakened state, you gain the following benefits:

• The staff has 12 charges, and it regains 1d6 + 2 expended charges daily at dawn.
• You can also spend charges to cast the following spells from the staff: Conjure Elemental (5 charges) or Ice Storm (4 charges).
• When you cast a spell that deals bludgeoning, cold, fire, lightning, or thunder damage and you roll a 1 on a damage die, you can reroll the die and must use the new roll.

Exalted. When the Spire of Conflux reaches an exalted state, you gain the following benefits:

• The staff has 20 charges, and it regains 1d6 + 4 expended charges daily at dawn.
• You can also spend charges to cast the following spells from the staff: Chain Lightning (6 charges) or Fire Storm (7 charges)
• The bonus to spell attack rolls and your spell save DC increases to +2.