Not that I've seen, but why not just switch and have your bard kill the thing? Mercs aren't that great of tanks anyhow after about 70 or so (I think), so you're really trading 1 paper tank for another in regards to having the bard do it. Then just wait it out.
Or....buy/make yourself up a SK or some other tank type to do the real tanking for you, they're 100 times better than merc tanks. And since you're using KISS anyhow, once set up correctly, they're not that terribly difficult to "play"
I have a couple SK nakeds, and I'm sure Sym has some SK's with boatloads of AA's should you want to look at buying one...though I'd wait till Wednesday when the new patch is done being rolled out.