How many coupon for the Clothing ?

i don't understand too.
Ay have no cd with his mystery when he have 70 or more chakra no ?? So what is the deal with +1 cd ??? it's like use interrupt or anything on him if he have 70 chakra or more he will just spam.
I don't understand realy.
After looking yes Tobirama can combo a super armor, but only with his mystery ( Y+1 ).

For Ay -> Mystery +2 : When chakra is 70 or higher, this mystery will not consume chakra and will not suffer from cooldown

After chinese got Edo Fu with his new barrier who rekt hard Ay