I'll make one based on arena that really caught my attention and made Shadowlands 20s Wargames/Arenas that much more fun
Ret - Kracks, Jinkies
Hpala - Kracks
DK - Bop
DemonHunter - Djtsg
Monk - Nghtmarez (freak who race changes every other day)
Warrior - Oldspike, CHOPS (he 1v2 in arena, DM...