Notes & Combos
I really like this deck, I pulled on Ice Barriers on the last wave of support and now this wave. Winds Over the Ice Barrier has decent utility, getting you to your other pieces if you're interrupted. Searching for Gregorius off Revealer or Mirror Mage is still great.
Called By is for Ghost Mourner, the hand trap of the format but can come in handy if you need to negate something in the grave like an opponent's Mirror Mage. Crossout has good coverage.
I've considered Secret Guards of the Ice Barrier, but it doesn't protect the synchros and didn't really come up off a summon of Lancea. Also considered a General Wayne, but didn't play him as the S/T are just Freezing Chains (pretty good against Extra Deck monsters to be fair), the Medallion or Winds, his S/T banish didn't really seem as impactful so I didn't include him but I think if I could find some room he would be okay.
Kragen is generic with the Revealer and Speaker. Deep Sea Prima can do some cute things if you banish an opponent's card via Cheng or Called By.