Ugh. I'm not even sure why I'm weighing in on this topic, other than the subject is something I'm very sensitive about.
Mongo, you're a pleasure to run with. I can't imagine you ruining anyone's run.
I don't consider myself an ambassador for the game, but I've had the good fortune to be around long enough to amass a pretty solid collection of tokens. In the past few years I've grown from 2 builds, to 3, to 7 and now 9. I'm pretty sure I'm going to stop there.
Yeah, I'm one of those guys who runs a LOT. I did 19 runs at Gen Con. Why? I think I answered that in another thread, but half of the runs are just me reconnecting with friends and groups I've loved running with over the years. Why not stop there? Well, I also love the PUG runs. I love meeting new people in an environment I'm comfortable with. I love watching the group dynamics and see how things play out. And sometimes I really need to do a run 5 or 6 times to figure out a puzzle. I just find TD fun. And it's very important to me that the entire group have fun. Don't get me wrong, the treasure is nice and helps offset some of the cost, but that's not why I do it.
I'm not sure there is one perfect way for a veteran to blend into a PUG. It kind of depends upon the group and the individual. I can only speak to what I do.
First, I don't scale back my build. I suppose I could, but it's complicated enough with 9 builds keyed into my app and I'm not about to start unequipping items and then try to remember to reequip them later. I suppose I could just add a couple of scaled back builds to the app. I just don't feel it's necessary. Where does it end? You can equip normal weapons, but then I've seen some veteran's that can pretty consistently slide crits. Is that fair? Should they intentionally slide poorly? I think the key is, don't take over the combat and kill the monster in turn 1 or 2 unless the majority of damage was done by the rest of the group.
So first I don't select my class until it's pretty close to the start time. There's no need, it's all in the app. I try to let the group have first choice of characters. If no one in the group selects cleric or druid, that's what I'll take. Then it's easy. My job is just to keep them alive. A cleric can start a combat by casting prayer or bless and then start healing people. If I end up with a melee class, I'll try to slide the weaker of my two weapons, but at least I'm not that proficient at hitting crits. If I end up in my usual elf wizard or wizard class I do forego using MEC or Cabal Set. I can stick to 0 level spells and my damage won't be that out of line. I can also sprinkle in some Bull's Strength spells to help the group. I think I did pretty good at making sure the PUGs I ran with had fun in combat.
As far as loaning tokens. Sure, I have a lot of tokens I could lend, but then newbies can't keep track of a lot of token effects. I don't have TEs to loan, but I will use my extra Rings and Charms of Heroism to boost some of the party to 5th level. They seem to appreciate that. In some cases, if another person has a CoAS of CoS, then I will offer to loan my extras to make those more effective. That's about it. I don't want to make things more complicated than they need to be.
Puzzles are a challenge. If I know the answer, I don't give it away. I try stay engaged with what the group is doing and if necessary, nudge them back on course. There are a few times I've given away the rogue clue, when there was no rogue. But I still want the group to feel like they solved the puzzle and if not, I'll take damage right along with them. But there was one time this year where someone commented that with my knowing the answer and not participating, that the group was not getting the benefit of ten brains working the problem. That did bother me a little, but I don't really have a solution. If we go down that path, then anytime you solve puzzle, you should refrain from ever running that dungeon again. I'm not at a point where I'm going to give up multiple runs.
At the end of a run, I always ask newer players if they had fun. If they say yes, then I feel all things considered I did ok. Having run as often as I have, I've seen a lot. I don't think you have to be a veteran to ruin a run, I've seen newer players think they know what they are doing, take over and the entire party fails miserably. That situation is no fun for me either. Fortunately, the bad experiences are very rare. I think 99% of the people I meet are great to run with. If I have contributed to any negative experiences, I truly am sorry. It's never my intent. I also apologize that my memory is so horribly bad, but I had the pleasure this year of running with some people who remembered me from a few years ago. That was pretty awesome, and I'll try to remember all of you for next time.
Lengthy, but there are my thoughts on the subject.