Storm Rush
Activated if player's weapon has better affinity to opponent's weapon
Breaks enemy guard, allows more combo attack, and increases attack speed

Enemy officer who wields weapon with worse affinity to player's will have a greenish Vigor Gauge on top of their HP bar
The vigor gauge starts with a full outer circle, which will be depleted as the officer is attacked by player
When the outer circle is gone, Storm Rush will be activated
During Storm Rush, Square & Triangle buttons can be mashed to launch continuous attacks
Character's direction can be changed during Storm Rush *NEW*
Variable Counter
Activated if player's weapon has worse affinity to opponent's weapon
As the name suggests, it's a counter attack that will make weapon switch at the end

Enemy officer who wields weapon with better affinity to player's will have a red mark on top of their HP bar
To execute a Variable Counter, launch a Variable attack (R1) on the enemy officer while they are charging their powerful attack
A cue to see when the officer is charging a powerful attack if the officer flashes brightly *NEW*
Both Storm Rush & Variable Counter will also blow away surrounding enemies
This is also shown in the 2 Videos in my earlier post, info taken from KoeiWarriors