Reset is coming up with the opportunity to buy the first bullion item, and many of these items are quite expensive to upgrade in terms of flightstones. For this purpose, you can spend your 15 plunderstorm coins to buy 15 flightstone tokens (50 flightstones each), and open them once you spend flightstones on upgrades. This effectively brings your flightstone cap for Wednesday to 2750.
It’s the first week of the season, there is going to be A LOT of gear upgrading. Especially bullion items. The Rasz bow for example is like 5000 flightstones to fully upgrade.