I'll send in a request. Currently I have Tana as my lead, but I'll change once the gauntlet hits. I do have a variety of units I can assign as my lead, including one that's a 5*+10.
Sent a request! I'm "Lazuli," with a spooky Henry as my lead right now. :) I rotate leads a lot, usually corresponding with the current RD or GC bonus.
No +10 supermerges here either so you're in good company, lol.