I'd love to see a card game in SMITE 2, with each god’s abilities as cards. You would first collect only the cards of the gods that are available to you, and these cards could have levels, dealing more damage or enhancing effects.
In this case, it would be a Titan vs. Titan battle, with gods and their powers clashing against each other. There wouldn’t be any mana, but each card could only be used once per battle by either player. If both players have the same card in their deck or hand and one of them uses it, the other player’s card is instantly burned.
The cards placed on the table would remain there until they are canceled for some reason. So, each round, damage is dealt by the cards on the table, which could be mitigated or even nullified if there are defensive cards, such as abilities that heal or provide shields.
A god with CC abilities, for example, could delay the effect of a damage card from the opponent, rendering it ineffective for that round, or even reflecting the damage. Ultimates could also have a direct impact on the cards - removing those of the opponent, buffing your own, being more damaging, more defensive, or even changing some rules of the game, like allowing two cards of the same ability in the game or wiping the entire table.
I’m not sure if these would be the exact rules, and a lot would need to be worked on and balanced, but I think something like this could be really fun in SMITE 2. Even if it was something extremely simplified, it could be a way to pass the time between queue times, where you could practice for the real game mode later, for example.