It would be nice if they implemented a trade-in system - exchange X amount of Dark Totems and receive a totem of your choice. I've done this event since it first started, and it's been back what... ~6 times now...? I -just- got my 2nd Dark totem for my on the second last day. Meanwhile, my Evan got all 3 Dark Totems in 1 1/2 weeks.
There needs to be some sort of failsafe put in place to mitigate the screw of RNG.