Haha the plan was more for situational killing moves on ones that require setup like [insert] killer next, [element] bane next, bloodthirst next, survivor next, etc. The concept was you’d cycle through the enemy line-up to find the particular targets you need. In PvE you’d ideally leave the enemy team as something you could control easily then kill off a few of the next monsters. In PvP the main use would most likely be to mess up the enemy team and you’d maybe take out a couple of monsters, but you’d have to strike a careful balance between spending time doing that and having a strong team for battling what’s in the field at the time (these monsters which can hit next in line are slow, both needing to knockback random next and the TU is higher for the “next” moves).
EDIT: Forgot to mention, in the original concept the knockback random next move is infinite use with the [insert move] next being limited use. Depends on the move but typically 3-time use.