Super accessible, fun, easy to learn but hard to master eSport that will allow people to simply play without pay-to-play or pay-to-win elements and even duel others for crypto/NFTs or have sponsors if wanting to become pro. 

This game has been in the works for 2 decades now, no other turn based strategy compares to it mechanics wise.

TL;DR: The best way to duel someone using intelligence while avoiding any chance based elements.