I run dual bards a lot with my mystic swellweaver in the basement giving full peacemaking and provocation buffs. I have nearly 30ish MR on them but I think that is way too high. I cant remember the exact number but I think with diminishing returns on MR now the max real benefit from MR is 33. The resilience song gives +22 to all regens at 4x 120 real skill. So I have too much MR piled on with the song active (22+30ish = 52ish MR).
Initially I think I have focused too much on MR, overloading MR on the suit and dumping all i can in focus/med. I am going to redo their suits based on +skill items like the crystalline ring, magery/eval mark of travesy, lost tome of knowledge and spellwoven britches. Maybe get magery to 120 and see what I can sacrifice in focus for eval. As the bards are support, I am not too concerned with luck or damage.
Running 3 accounts in the basement is a challenge. Captains initially flip aggro a lot and the bards are often targeted. I have enough magery on them for 100% invis success and find myself thumping the invis macro all the time in captain fights. With the spellsong active, invis is broken on the next tick so be ready to run a lot. But after the first 20% or so of the captains' HP are down the fight usually settles down and the captains stay fixed on the tank(s). I like these fights, it seems like they have a real enmity system built in.
My guild really likes the buffs as they also effect partied guild pets. The 30% damage reduction, resistance to most poison and 20ish hp/tick heals are very helpful keeping greaters healed to full. One of the provo bard spellsongs occasionally gives healing ticks. That bard gets maybe one drop in 10 or so captains. But I do not wish for the bards to get any drops at all in guild fights. Captains only give two drops per kill and I think it is unfair I get an extra chance at a drop, potentially giving no drops for other guild members. I get plenty of drops on my main and I think the distribution is fair for everyone as is. So no luck for me in the new suit build as all luck seems to do for minax drops is allow you to jump ahead in line for a drop from time to time. Just be sure to throw out elementals from your bard on the lighthouse fights as everyone gets a drop there.