For strikes its fine but for grandmasters its awful. It doesn't add an element of fun or real difficulty. It just limits builds or results in ability spam builds. Remember how we got rid of match game because it was limiting builds? Personally I think all the modifiers are kinda dumb but I wouldn't say bad. Oscillation though, is bad. Either remove modifiers from grandmaster or please revamp it and make sure it will never lead to needing to run a shotgun or smg in a GM just to balance out the modifier. I would rather have match game over this.