Marvel Avengers Alliance: What is AvX Set?

What is AvX Set?
Like Chess Set AvX Set is a set of four Gears associated with Special Operations 3.

Phoenix Flare

 1 of 4:  Pheonix Flare ( reward from task 17/25 at special ops 3 )

Heals over time
Does not trigger counter attacks and protect abilities
Deals extra damage
Massive damage against all enemies
Skips a turn next round
    

 Arc Reactor Charge  

2 of 4: Arc Reactor Charge ( Iron Man Epic boss drop from mission 3 X-men side )

Grants immediate extra turn
Deal extra damage
Gives full stamina until next attack is made, next attack does double damage
Skips a turn next round 

 Cosmic Flame

3 of 4 : Cosmic Flame ( Phoenix Epic boss Drop from mission 3 Avengers side )

Gives immediate extra turn
Heals over time
Applies Soulfire effect to next attack

4 of 4 : Unknown ( perhaps it is going to be released as limited edition item )
I'd imagine the 4th AvX weapon to be bought with Gold perhaps does something while the Agent is "stunned" for 1 round. Perhaps a Counter ability or something like Sonic Fist where attacks will cause a Feedback. Not sure.

So guys what do you think about the AvX