Sinnoh Rush

Reduces the user’s sync move countdown by one the first time it enters a battle each battle. When used in a co-op battle, reduces the user’s sync move countdown by one the first time your team enters a battle each battle instead. The more allied sync pairs with the Sinnoh theme you have on your team, the greater the reduction is. (Each additional sync pair increases the reduction by one, and the maximum reduction is three.) The effects do not stack if you have more than one sync pair on your team with passive skills of the same name.