Appreciate the effort for getting a web build \(^-^)/. Since the power boxes are important, maybe you could specialize their opening mechanics, like, a particular Orc has the key to one overpowered chest. Or one of the party members has to be standing on a particular tile for that chest to be opened. So players can prioritize their movement and attacks. Into the breach has tile mechanics, like, standing on a Forest Tile make your attacks more effective (since you're hidden). These were all I could think of...
Excited for the final release :D