Playing Yoshihiro's scenario in Pokemon Conquest. Egad, when the other warlords took notice, all their Mons suddenly jumped to 40% strength. I lost Cragspur by one turn (seriously, if my last Mon standing could've survived that hit I would've won), nearly lost Avia ... twice. Nobunaga's Gabite hits pretty hard, and Scyther's Fury Cutter is no laughing matter after a few turns increasing in power. The first one I won solely because I realized that my Charmander can in fact outrun everyone else (4sq. movement range, versus Gabite and Scyther's 3) and I spent the remainder of the battle doing precisely that. The second time I realized that that one isolated island in the corner of the map is all but inaccessible to anything but a Flying type with a 4-square movement range (i.e: the Starly/Rufflet/Zubat families) so I hid my Staraptor out on that island while everyone else went down fighting. Got twelve beautiful turns of doing absolutely nothing while watching Dratini and Gabite frantically using the jump pads in fruitless attempts to approach me. Bounce on, bounce off. Over and over and over and over again.
Almost lost Pugilis, too, the last Mons standing were my Drilbur (Ground) and their Emolga (Electric/Flying). At this point nobody could claim all banners, much less keep them for five turns, so the game called the battle with 5 turns to go.
Since then I've solidified all of western Ransei, and spent enough turns defending Avia to level-up my army quite a bit, I've not only taken Cragspur back but held onto it the following turn.