Event is for new players so if you want to do it fast just don't open chest in tower as well as shop just after they available wait for event task to come
i see its stupid events tbf , there is no way to open chests cuz once you progress in to towers u start getting matched with AI whos at 4k hp and i know for sure that aint no real players lol , and it literally isnt skill based just luck based , idk why he changed the way ultimates work where you can get the ultimate in the same round that should stay its piss taking trying to win tower or praying you get someone with hp under 4k lol