>>49972512I should warn you even with a 6EX Siebold the Battle is still really difficult, so don't waste power ups unless you really like him as well or else it'll be a waste. You basically need for everything to go right on your end. If you miss a Fire Spin or Hypnosis: reset. Took a critical hit? Reset. Picrel is the grid setups I used for each character.
>Lucky MovesSerena = Dauntless.
Siebold = Critical Strike
Sycamore = Vigilance
Start the battle by Trapping everyone. Use Sycamore's Trainer Move to help whittle away at Dragalge and keep your HP up. Sync first with Sycamore. Hypnosis. Keep spamming moves until you can set up Siebold for the sync. Keep spamming your moves until Dragalge is dead, then move on to Toxicroak, and then finally Calem. Keep using Hypnosis along the way. Little things like move gauge refreshes will really help so hope those pop up. Trap might wear off as you're about to kill off Calem so Fire Spin again to keep up the damage output. If Serena gets knocked out before then you're probably gonna have to restart. I tried recording a video to show how the battle should flow but I couldn't get another win so I gave up. That's how tedious it is. I might try again later when I'm less tired. Hope this helps. I'd probably snoop around for better solutions though before attempting anything.