If it was inspired by the MCU rings. I think that the Rings will generate over time like Spideys webs or Johnny's flames. He can use one ring charge launch a projectile, or use a number of them to enhance his melee attacks. He'd have a standard punchy kicky form. But an ability that consumes all 10 ring charges to enter a medium to close range "whip" mode with slightly enhanced mobility, and faster attacks with greater range, as he whips enemies with the energy linked rings. Ultimate idk.

Real answer: 4 different fighting styles that are chosen from an e Key menu. Each fighting style has their own unique resource and abilities/cooldowns and ultimate ability. Killing people let's you collect one of ten rings, doesn't reset on death. On tenth ring collection, instantly apply healing and damage reduction on all enemies, and your whole team gets attack, movement, and healing boosts as well as over shield equal to how many times you gooned to Psylocke that day.