Elgrim is a young woman who was a member of the staff of an alchemist who had been forced to work for the king of the city of ice, before the barbarian warlord killed him a few years ago. He would never let her go, but wouldn't use any of her goods, so she has spent her time studying and experimenting since. She put up a sign, offering to sell potions, after the city was liberated and Kibbles took over.
She can make any potion in the DMG, plus the ones listed below.
Fire Breath
Oil of Disenchantment
Oil of Air Elemental Invulnerability
Oil of Fire Elemental Invulnerability
Oil of Water Elemental Invulnerability
Oil of Impact (+3/+6)
Oil of Sharpness +6
Oil of Timelessness
Philter of Beauty
Philter of Glibness
Potion of Vitality
Potion of Cold Resistance
Potion of Necromancy
Potion of Thievery
Enchanter Elixir
Frost Breath
Acid Breath
Lightning Breath
Potion Extender
Oil of Impact +3
Oil of Impact +4