Blue Streak

All four of the artifacts are common tier items from the Dwarf tier in archaeology.

Scorched Staff of Shadow Priest Anund
Dented Shield of Horuz Killcrow
Notched Sword of Tunadil the Redeemer
Silver Kris of Korl

Piecing together the lore from the 4 artifacts, it looks like there was a party of 4 who took on the dragon. Well I see a big problem with this group; They didn't bring a healer. Also they all played pretty bad it seems.

Anund - Shadow Priest DPS, death by standing in the fire
Horuz Killcrow - Warrior Tank, he played like a dps and was probably killed by the dragon's tail whip
Tunadil the Redeemer - Paladin, seems to be Ret pally DPS, the dragon somehow broke his sword and then he fell on it, sounds like a Ret pally to me.
Krol - Rogue DPS, the only adventurer to survive the encounter, killed the dragon with one stab in the heart, sounds like after everyone died he rogue-tanked and got a lucky crit. (and probably ninja-looted while everyone was recovering their corpse)

It was Colonel Mustard in the Dining Room with a candlestick!