Shadow lairs tokens (called Swarm Goo, decription: The goo used to infect monsters. Lost souls and devlites prize these items for turning things into trojans, and for bathing.) are a new type of token that are retrieved in the sanctuary, along with the material, BUT if you collect the material the token will disappear. if you collect the token the material will disapear, how is this important? The token is distributed individually! Each player will collect 4 shadow lair tokens when they pick up a token, but only the player that picks up the token will get the token. In the sanctuary will be a Lost Soul that will say:
"Bravo traveler! This is a dark realm, and I'm suprised you made it out alive! I can sell you gear for that token you picked up, i need 8 tokens per item!"
"Each player will collect 4 shadow lair tokens when they pick up a token"
"i need 8 tokens per item!"
I can already tell you an unnecesary complication within the system. Why don't you just give 1 token and make the trader sell items for 2? :P