J-H
Hero
I have not had any problems DMing at high levels, as long as I don't have 6 different enemy types with unique spell lists for each. You just have to be willing to see the party hit really hard.
My BG2 campaign just had the party fight Jon Irenicus in Suldanesselar. It lasted a round and a half (not counting the time stop) thanks to some counterspells and my chaos player doing his thing... he transformed into the slayer and tackled Jon off the tree, clawing at him as they fell 300' through the forest, killing the wizard on impact with falling damage and knocking off over half the player's HP.
The fight against the sneaky ancient black dragon that kept hiding took a lot longer than the wizard battle!
Encounter and adventuring day design is still pretty important. This was their 6th fight of the day, plus they had 1-2 short rests and some outside healing/spell slot restoration. Since it wasn't a nova/only fight of the day I didn't feel bad about it.
My BG2 campaign just had the party fight Jon Irenicus in Suldanesselar. It lasted a round and a half (not counting the time stop) thanks to some counterspells and my chaos player doing his thing... he transformed into the slayer and tackled Jon off the tree, clawing at him as they fell 300' through the forest, killing the wizard on impact with falling damage and knocking off over half the player's HP.
The fight against the sneaky ancient black dragon that kept hiding took a lot longer than the wizard battle!
Encounter and adventuring day design is still pretty important. This was their 6th fight of the day, plus they had 1-2 short rests and some outside healing/spell slot restoration. Since it wasn't a nova/only fight of the day I didn't feel bad about it.