Just an idea here ~

I still don't have any staff started yet, but i'd like to do them all.

So, is there a chance of making a new trial path to gather all the staff in one ?

Ex:
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Caller's Staff +2
Avatar Perpetuation Cost: -6
Blood Pact Delay -10
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Quest: Trial n° #####
Trade: Agni's Staff +2 , Vayu's Staff +2 , Indra's Staff +2 , Surya's Staff +2, Varuna's Staff +2 , Kubera's Staff +2 , Soma's Staff +2 , Yama's Staff +2
Obtain: Caller's Staff +2

~ Reverse ~ (So you can make the +3's and start once all are +3 the Caller's Staff +3)

Quest: Trial n° #####
Trade: Caller's Staff +2
Obtain: Agni's Staff +2 , Vayu's Staff +2 , Indra's Staff +2 , Surya's Staff +2, Varuna's Staff +2 , Kubera's Staff +2 , Soma's Staff +2 , Yama's Staff +2