aco175
Legend
[MENTION=20564]Blue[/MENTION] You are right, if you overdo it with + on weaponry and armor, then you have to shift the bounded accuracy to make it work again, e.g. give the Mobs more hitpoints use more of them or increase their armorclass or attack bonus. Also that kind of equipment does inherently lower the caster classes damage output in relation. But to counter such a thing is still far more easy than to rewrite your complete campaign, because some gimmick teleported the party to another plane, which you have not had in mind at all to ever play some role in your campaign or even if you slightly considered it, you might not have prepared material for this scenario.
I have done away with traditional HP in some situations when the PCs have gotten to a high enough level. I had 10th level PCs fighting a mob of goblins which only have 7-10hp each. I just made them one-hit and dead from any of the PCs. Some of the tougher creatures I made 2-hit, or would place a red ring on them when they were not quite dead and needed only a bit more damage. It made things easy on me for large groups.
The +3 weapon did not make a difference much here, but certainly does against the BBEG. At 10th level though I was only getting ready to hand out the first +2 weapon, but all the PCs has +1 something or +0 with a cool thing like returning, or can cast a spell 1/rest.