How to Use a Spell Once Per Game?

The idea of once per game is not new. What is relatively new is we've started adding once per game abilities. You can combine activated and static abilities, where once i activate the ability, then for the rest of turn it is true. It's hard on static abilities to limit you since static abilities tend to be on am. Amh, there is a bunch of things just controlling when you can do something. Ok, next are use restrictions. Talk about how not when you can use it, but how you can used it? And so the one that brought on this whole podcast is only once.