regular token could have a bosses name affixed to it such as; T5 Boss Token: Snappy
That would be a LOT of different tokens lol
Would be easier to do rarity tokens.... (to spawn the NPC in T5)
Common token -> Random common boss (Kill All type)
Superior token -> Random trigger boss (Triggered type)
Rare Token -> Random Rare boss (Random type)
Time Token -> Random timed boss (timed type duh)
Either way though.. it would be a great idea for those who need to back flag alts!
Plus the legendary token idea you have seems like a neat idea.. but would probably be a nightmare to code that