To the OP the only thing that would have been funnier is if the tabber all of a sudden relogged just as you all died, saw you dead on the ground and seeing that the boss was so low ended up getting in a crit hit or two and killing it themself. I seriously thought that's where the story was going and it would have been hilarious.

As for fb51 I think it's fairly easy so long as you have 1 BM or Barb (Barb preferred) and a cleric (although I have seen high venos with hercs tank). The 3rd boss is simple so long as the cleric purifies immediately when they see debuff. By the level that a cleric can do fb51 (i.e. lvl 51 lol) their Iron Heart should have enough range to cast outside of the AoE effect provided the tank is positioned directly between the boss and the cleric. (No side angle healing else you'll get hit). The purify however at that level is likely only level 1 or 2 for most clerics (although getting to 6 at least quickly is a good move for any cleric) Regardless if you spam heal out of AoE range and as soon as you see the debuff put on the tank purify. Your character will rush in because the spell cast range is short at that level. Once you cast run back out of AoE range and cast IH again at it's max range. Lather, rinse and repeat as necessary. It may occur that you get hit by AoE once when you rush in, but just pot. You should be able to take one hit even though it may take your hp very low. One last note is that if you are a low level cleric solo assisting you have to warn the squad that they either need to stay out of range or else heal themselves. Also if they die there will be no time or ability to rez. Your focus needs to be on the tank only. At level 52 I managed to get a level 5x bm and low 6x bm only (3 of us in squad) through fb51 with patience and a lot of mp pots. As a level 6x cleric and higher there should be no issues at all and you can even cast a chromatic or two to heal members around you and others with range. Of course this all goes to hell if a mage or archer pulls aggro and is standing right next to you. Then all bets are off!!!

First boss is on a 6 min patrol route, so he's not so bad.

Second boss is on a 22 min patrol route. Miss him and you're going to be waiting a while. Fortunately the pillar and the place most people fighting him is near the middle of the route, so the longest you'll usually wait is 11 min.

The patrols are not so bad if you have a veno. Assign the veno to take on any wanderers. The barb + cleric must stay focused on the boss. The key is to plan ahead for this eventuality before it happens, and make sure everyone understands their role if/when it does happen.

IMHO the biggest problem with this FB are the AOEs. The second boss is particularly bad since he's got a short-range physical AOE that will one-shot most robe classes, and a medium-range magic AOE which will take off 1/3rd the hp of most robe classes. A cleric is a requirement if you're doing this as a group.

I've given up trying to find the guardian for that last door which nobody uses anyway, so I'll post my guide to the FB on the Nocturne guild website soon, Haz.

Actually a 66 veno with herc can solo it, maybe even 63. Not that I recommend it. The first boss has a ranged attack so doesn't take reflect damage from the herc, and takes forever to kill. I've tried skipping him by taking advantage of his romaing path, but it's risky.

The debuff on the last boss is nasty, but can be overcome with some channeling equipment to speed up your heals.

Dang....I have only had about 3 fail runs with this fb...although I used to consider it cursed.

Now however, after who knows how many runs, I find is a piece of cake. To the point where I have tanked it a few times

Its really not that difficult overall, the issues arrive when everyone goes nuts with the mobs.

If you have a veno = use them
If no veno = Extreme Poison

Ummm....you do not have to do it twice...lol.

After the 2nd boss have the tabber tele out, turn in quest and comeback in with 3rd tab.

That fb has baaaad "mojo" !!

You got lucky, or had very good buffs and clerics. I ate 4 or 5 deaths to test Rankar's AOEs solo when my veno was about 64, level 60ish heavy armor, fox form. I took anywhere from 600 to nearly 1400 damage from the AOEs.

I tried switching to robes, which helped with the magical AOE. But that's when I discovered he also has a physical AOE. It hit me for 2100+ (insta-kill).

Do you mean the guardian for the door blocking the path on the east side of the FB map? I'd been thinking this might be a useful way to pick up the additional mobs while getting the tabholder out and back in between bosses 2 and 3 with a little less lost time. If I'd be wasting my time looking for it, though, that is useful info, but darned if it doesn't seem like he should be in that big room just beside the door.

No, the east path guardian is on the way (there's a T-intersection just after you enter the east path - he's at the west branch of the T). This route is good if you only want to kill Rankar (2nd boss). But if you try to take it all the way to the 3rd boss (Wyvern), it's actually longer because you have to backtrack along the common middle path to open the next door.

The door I can't figure out is the one by the first guardian (the one which opens the door by where most people kill Rankar). It opens up the far west path in the intermediate part of the FB (the common route would be down the middle). That looks like it could let you skip the first and second bosses and head straight to the third.