Look at what the feather token does - it creates a tree on a command word. A sixty-foot tall oak tree falling from 80 feet up deals a lot of damage.
Oh, crap, does it specify the tree growing? 'cause remembering how they did the same thing with the bridge, they grew it and then toppled it...damn. Honest mistake all round, if so (we've been playing this thing for over a year now) and I don't retcon mistakes on either side if they're caught after the round in which they occur 'cause it quickly becomes too confusing, and if I did, they'd be a lot more motivated to point out mistakes that went against them than, as now, speaking up as soon as they notice something. Too damn much to keep track of in this game. We'll look it up and if we did it wrong, we'll technobabble an explanation. The PCs didn't get the x.p. for that, btw. The eagles did. Seemed only fair.
We didn't get past the hill giants encounter, which is working very differently from what's assumed in the module because my beseiged town has craftsmen in it who can build ballistae, engineers who can reinforce walls, etc. Obviously, four unsupported hill giants plugging away aren't up to snuff, so they've got barghests with them to dimension door up and murder ballistaemen, plus they'll have air support as soon as the flyers finish taking out the town's druid allies across the river. I'm going to have to name a new commander of air force who is not himself a flyer (the remaining flyers being dumb as rocks), probably a war priest or adept, and have the surviving wyverns, chimerae, manticores, and hieracosphinxes do a coordinated rampage, with pilots and bombardiers, including casters. I think at this point I'm entitled to give the bombardiers something nasty, don't you? I had originally statted them up with alchemist's fire, tanglefoot bags, thunderstones, and boulders, but something more devastating seems called for. I need to check the druids' equipment, for one thing.