Don't move while using it.
I don't know how I didn't realize that the tooltip says effect cancelled upon movement.
it does.
the thing that you're probably unaware of is how it accepts mudra inputs: it records the previous mudra input and adds it to the next input, and so on.
to put it simply, you have to go
fuma (one step mudra)> raiton (two step) > suiton (three step) (if trick attack is up) or fuma > katon > doton
but you're only inputting a total of three mudra to do the sequence
So Ten -> Ninjutsu that will cast Fuma Shuriken, then just Chi -> Ninjutsu again to cast Raiton, then just another standalone Jin -> Ninjutsu to end the ability on a double potency Doton?
Ok, I can see why this is rad. It's more of a stairstep, where I interpreted that I had to do the full Mudra sequences for the spells that I wanted to cast... But instead, it's one continuous Ten -> Ninjutsu, Chi -> Ninjutsu, Jin -> Ninjutsu to effectively cast all three spells in one layered sequence. Ahhh, I absolutely see and LOVE the value in that then. It shall be employed to great effect, knowing this. I can see why this is rather difficult to communicate in the tooltip text.
EDIT: Forward Ten -> Chi -> Jin to lead-into Suiton/Trick Attack finisher (ideal for single target engagement), backward Jin -> Chi -> Ten to lead-in to Doton finisher (ideal for multi target engagement). I see now, I seeeeeeeeeeeeeeeeeeeeeeeeeeeee
EDIT 2: nope I see that backward sequence would lead into Huton as final ninjutsu (which I presume would waste the double potency effect), so I'd have to start Jin or Ten, perform the opposite to get a Katon, then finish on Chi to end on Doton. Ok, ok, I see I see.