Include a chance to flee, and a chance to surrender and offer a nasty deal to the PCs.1-2 Fighter
3-4 Wizard
5 Cleric
6 Rogue
?
i mean, that's just completely and blatantly outside the parameters of the scenario, then. also you used your bonus action twice.Attack 1 drop the fighter. Use teleport to land next to rogue and use attack 2 to drop him. Next use action surge to move to mage and use bonus action to drop him. Use free action to ask if cleric wants to give up.
I kind of give BBEGs bonus powers.
how in the HELL did they manage THAT?Last Saturday my 4th level party of 4 dealt over 100 points of damage against a flying AC 23 "boss" in under 2 rounds.
Did the fighter cease to exist in this scenario?If the BBEG isn't a spellcaster: same story, except I'd drop the cleric first, then move to cover to escape the wizard/rogue's targeted attacks. Double-tap the cleric on my next turn, demand their surrender. If they don't flee or surrender, I would loot the cleric's most impressive-looking piece of equipment and run away, making them chase me through my obstacle course above, and harrying them at range every time they try to stop and rest.

(Dungeons & Dragons)
Rulebook featuring "high magic" options, including a host of new spells.