Previously competitive Last Man Standing was removed from free-to-play presumably to combat bots devaluing rewards, as suggested by continued efforts to combat botting with later updates. Given that these efforts have obviously failed and any F2P item available for purchase is worthless anyway, can't free-to-play just get the game mode back?
A low-stakes introduction to pking in a members world for actual players with the opportunity for rewards from the shop, most of which require membership to redeem anyway. And they can even practice on entry-level AFK bots all the way up to AHK efficient ones!
To drum up at least a little support based on previous proposals, even make it a permanent AUS world!