Hrm... well I was going to have to reformat the Decidueye GX deck after rotation to take out Forest and a few other cards that'll no longer be usable. Hearing that it's been banned from Expanded is a little bit of a blow, as it means I'll have to dismantle the legacy deck on the TCGO.
Then again, Forest was WAY TOO OVERPOWERED in the deck I had it in. Seriously, get Shiinotic or two out on the bench on turn one, and you can pretty much get one Decidueye GX out per turn with the right cards XD When I was playing back in Ireland recently, I had an undefeated streak thanks to it.