The Shards of the Gate of Darkness, Part 3

After defeating the hobgoblins at the caves, the dwarf chiseled the shard out of the cave wall. They pressed on immediately to the next location they were told about. They followed their directions to a large crater, created by the impact of a dragon killed in midflight by one of the shards. In it they found a tiefling using undead servants to try to unearth the shard.

The encounter was:
1 tiefling heretic (level 6 artillery, 250 xp)
2 Zombies (level 2 brute, 250xp total)
1 gravehound (level 3 brute, 150xp)
2 decrepit skeletons (level 1 minion, 50xp total)
Map: Dragondown Grotto from Fantastic Locations: Dragondown Grotto

The party and the gravehound spotted each other at the same time. The zombies rushed the group (as fast as zombies can, anyway) while the skeletons fired arrows and the tiefling threw balefire. The party made pretty short work of the zombies and skeletons. The warlord and ranger turned their attention to the tiefling while the paladin and wizard slugged it out with the gravehound in a festival of bad rolls.

The tiefling fell back across the crater, throwing balefire at the warlord. The ranger charged him and he teleported up to the edge of the far slope. At this point he and the wizard hurled some taunts back and forth in Supernal. The heretic and the ranger traded ranged attacks for a round or two until the ranger and warlord retreated out of his range. Realizing he was still in range of the ranger's bow, the tiefling fled.

Analysis:
I probably could have done a better job at making the tiefling memorable with some witty one-liners in Common, but I don't think I was at the top of my game. Plus, I'm pretty sure the ranger was getting in position to race up around the side of the crater and chase him down like a dog, so he needed to get out of there before the encounter devolved into another session of "chase the bamfing tiefling".