[rdonj]

Valerius has good advice for fighting against his armies, but yeah, that is a bit much for just some raiders. FG's advice is also good. What you want ideally is to be taking these armies out in the magic phase. Unfortunately I don't think there are going to be many ways to do this cost effectively, but...

1. Assassination - Losing the ryujin makes the tengu much less scary. Earth Attack ought to be capable of taking out a ryujin, and earth elementals shouldn't much mind any bodyguards they might have. This can be pretty luck based though depending on paths and scripting of his ryujin. Mind hunt. Any other remote attacks you might have with much chance of killing a ryujin or the tengu? Go for it.

2. Thugging - Thugging is going to be tricky to make work realistically. I'm pretty sure any one shura put up against 25 w9 tengu is going to lose, no matter how much gear it has. 3 shura with a vine/gold shield stuck on one to act as blockers, and then one or two mages raining down fear and damage your shura are immune to on the tengu's heads? Maybe, just maybe that will work. You're putting a lot more gems on the line than he is though, and probably more gold. Test before using. An alternative to this could be bakemono sorcerers with phoenix pyre, winged boots, weapon and vine/gold shield. Tengu are fragile enough that just one or two pyre explosions should kill most of them and get rid of most of the threat. One sorcerer may not be enough... so you can see gem costs are adding up again here. And this won't work if the opponent casts appropriate protections on the tengu first. If you've got gold and sorcerers to spare though, you could certainly try using them in sets of 2-3, phoenix pyre with no gear. They'll get chopped up quickly, but the tengu won't do so well either! If anything is left afterwards, it can probably be taken by remotes or flying boot thugs.

3. PD or solid blockers backed by commanders holding bows of war. Konoha Tengu have no appreciable protection, so again unless that's fixed through your opponent's magic, this will destroy them quickly. You will need to ensure that your line doesn't flee before the tengu have been decimated though. A mage casting darkness here would be very handy, and you should either be doing magically supported spear bakemono or tough/ethereal creatures. Summer lions/winter wolves with army of gold would murder tengu gloriously, for example.

4. If you have Dai Oni SCs, you can use these with phoenix pyre and a good gear set. They are expensive though and if you're seeing weapon of sharpness tengu, just don't, they cost too much to throw away like that. Other SCs would likely work better, such as treants or grendelkin. If you use SCs, they should be flight-capable.

5. Cast GoNB, fill every province with mages, profit. Not necessarily practical :P

There's definitely more things that you could try than what I've spelled out, so do give it some thought! You might be surprised at the creative solutions you come up with.