Fused Staff Feat 8
Source Pathfinder Secrets of Magic
Prerequisites Spellstrike
When you prepare a staff, you can hold it up to a weapon to merge the two items. You can switch the fused item's form from the weapon to the staff or vice versa as a single action, which has the concentrate trait. When the item is in staff form, you can Cast the Spells from the staff and benefit from any other abilities the staff grants. The staff and the weapon share their fundamental runes, using whichever weapon potency and whichever striking rune is higher level. They don't share any other runes or specific abilities.
You can Cast Spells from the staff as part of a Spellstrike even when the staff is in weapon form. Otherwise, you can't cast the staff's spells while it's in weapon form.
The fusion lasts until your next daily preparations, though you can spend 10 minutes to separate the two items and meld the staff into a different weapon. The melding works for you alone. A different wielder can use the staff in its current form but can't transform it, get the benefit of the shared runes, or use its spells for a Spellstrike if it's in weapon form.
Traits
Anything that doesn't list another rarity trait (uncommon, rare, or unique) automatically has the common trait. This rarity indicates that an ability, item, or spell is available to all players who meet the prerequisites for it. A creature of this rarity is generally known and can be summoned with the appropriate summon spell.
ArcaneThis magic comes from the arcane tradition, which is built on logic and rationality. Anything with this trait is magical.
MagusThis indicates abilities from the magus class.
TransmutationEffects and magic items with this trait are associated with the transmutation school of magic, typically changing something's form.