the EG has some strange behaviours.
sometimes the "attack, he moves, you teleport" simply doesn't work. He just spawns a copy every time. in which case you can't win the lithium challenge.
other times he will chase you without spawning a copy (probably a bug).
Wins:
Gnome Assassin / Dwarven Paladin (ULE) / Ratling Duelist (UNE) / High Elf Archer / Gnomish Wizard x ~5 / Gray Elven Wizard (UCG) - Archmage / Gnomish Weaponsmith / Grey Elf Elementalist / Dwarven Priest / Trollish Barbarian / Drakling Farmer / Mist Elf Wizard / Human Beastfighter / Ratling Archer (UNE) / Gnomish Mindcrafter
Classes Left
Many!