This reminds me more of Heavens Arena. Possibly giving players better rewards the higher they get?I would like to see something like this. Like in duels, you raise one level every 100 wins, or maybe 150 like you mentioned. PvP would more be based on skills, so that you only fight people of the same level. You can compare this a little bit with Clash Royale for example, you start at the bottom, and you only face players of the same level. Once you start climbing, you face the people of that level. I would love to see this in duels! Nice suggestion!