I have two boxed roof hundreds of times with two tamers. What i found works best is chiv ai dog and fzww giant beetle. I didnt see the need for rc on the beetle since your mostly worried about containing spawn, honestly any aoe pet with diff dmg than the other pet will work. I tried a few diff tamer builds. Ultimately having provo makes the rooms go very quickly. I settled for two bard set up, although i switch on eval over disco on one of them for the rooms. So chars are:
char 1:
taming, lore, magery, music, peacemaking, disco, as much med as can fit.
char 2:
taming, lore, magery, eval, music, provo, as much med as can fit.
I would often remove eval before actual roof and switch for disco to have two attempts on both chars, once juonar is discoed that fight is over, hes the toughest one for two tamer set up. I switch on luck suit right before the end. This allows you to get alot of med on the build. Running both bard masteries does pretty much all the healing you need. Your main concern becomes retargeting by virtuebane and pull in with juonar. Best way to handle this is to have one char always have an invis ready, other char will be main and do any needed healing and invis on fly if needed. With all this said....Make a sampire and use provo/disco tamer. I love the two tamer set up, its fun but tamer sampire is about twice as quick. For that build i take sampire: 120 swrods, 120 tac, 120 parry, 120 bush, 100 necro, 120 chiv, 20 anat. I also take chiv ai dog and provo/disco tamer. Tamer only does disco and keep bard mastery up. Sampire does all work, takes a bit to get used to but its easy once you have it down. Just gotta watch bloodoath by juonar, i carry apples and have it ready to go off right away. GL!