The Spirit Staff is a summon weapon that can be bought from the Lone Trapper. It spawns a Unbound Soul to aid you in battle by firing 'Essence-trapping spirit flames.' Like other minions, summoned Unbound Souls are invincible and follow the player for an unlimited amount of time, unless the player dies, summons a replacement minion, or cancels the buff.
Its best modifier is Ruthless. The Mythical modifier provides the widest array of stats bonuses, but these primarily affect the initial summon rather than the resulting minion. Additionally, Minions cannot deal critical hits. The only significant advantage a Mythical Spirit Staff has over a Ruthless one is knockback.
- Minions spawned will always be non-solid, enabling them to fly through blocks at all times. However, the minions will not attack through blocks; this sometimes causes them to be rendered useless, as they trail behind the player and will remain behind the player if inside of a wall.