NFHS Football & Basketball
Dread Our Coming, Suffer Our Presence, Embrace Our Glory (Solonavi War Cry)
Are players allowed to trade influence, Tactics cards or even resources between each other?
Not really, no.
There is a Tactics Card that allows players to give each other influence, but that comes from the bank. And there's a Tactics Card that allows two players to boost their resources. That's about the closest thing there is to trading.