The Anti-Tower is pretty easy. I can solo the last boss on my Warrior, at least.

I learned this recently when our DPSers were just that bad. First set of dolls was me and the healer, and neither of us got broken out at all, and the boss used its tankbuster on one of the DPSers (because I wasn't a valid target at the start, being a doll). So he got rezzed. Next set had both the DPSers dolled. I broke them out almost immediately with a single berserking fell cleave on each. Next set (because I can only do so much DPS myself) was a DPS and Me. The DPS got broken out because the healer helped kill it, but it took too long for me to get broken out, and the boss tankbustered the healer and killed them. Then the DPS killed themselves on the Relfect damage the boss put up, and I was the only one alive at about 30%.

I then solo'd the rest of the fight, and since she wasn't able to tankbuster me twice per cycle because I'm not a valid target when I'm a doll, I was able to heal/mitigate myself enough through the other one, did it in about 4 more cycles.

So I could do it from 100%, but it would take a looooooong time.