league 10$ play...champion league 300$ gift

Given gameplays have a random element, yes it absolutely is gambling. Can you plan for your QB getting injured in the title game?

Call that innovation for best league competition... Many do that on fantasy league

the last thing MFN needs to get involved in is including everything it takes to have wagers.
If you want to start a discord betting group - great.
JDB can not be held liable, you can.
RICO laws are gonzo. Tribal Gaming laws have supremacy over both federal and state gambling laws.
There is a reason Magic The Gathering got rid of Ante cards circa 1999.

I'd like to add, if someone needs to gamble on MFN games - there's a program for that.
https://gamblersanonymous.org/