I think the method to building a winning roster is transforming a former duelist player into another role, essentially having a team with two "duelist" players. If I was a t1 team right now, i'd be doing my best to get a n4rrate or another really good duelist player to put on a sentinel or flex type role. All the successful teams of the like past two years have followed this formula (Alfajer, Jawgemo, Tenz, Meteor, Smoggy). It seems converting a cracked duelist into a role player is the true method to success, and I don't see why more teams don't follow this approach (Yay is next!!!).