Viper!

[Taliriah]

I don't exactly understand everything but it goes fast.
It seems that there are multiple branching combos such as:
A -> B -> B
A -> B -> A
B -> A -> A

They all seems to have different effect, but it's quite difficult to say without having the hands on the job.

Their effects seem to be giving you various buffs that you need to maintain. It seems to be a job that looks busy and have a lot of choices to make but is actually completely deterninistic, in which case in practice you'll just do things in the "correct" order out of memory and habit.
And that seems to match yoshi's own comment about how he was like "wtf is all this crap" when reading the design doc and how "it makes sense" when doing it in practice (i interpret "it makes sense" to mean "what you need to do next is obvious")