Next step is doing ability kills and collecting special materials depending on your sword element - mine were relic iron so it was called relic... something. Anyways drop chance is 5-10% and you need 10 of these. Get a ghost with a spinmetal/relic iron/helium filaments perk and a sniper rifle, a bag of crisps and a nice drink, call your best buddy or watch some tv and just do it. As for myself I had a party with my best buddy, he was on earth and I've been on mars and everytime I had my super ready I dropped it on some cabal, did a melee, dropped a grenade and in the end we did it in an hour or so. Well then you only have to wait until armsday and you get a 42 strike at the sunless cell where you have to kill an enemy depending on (you guessed it) your sword element. I haven't done it either ;)