I still don't get it...
anyway, let's go with Coin tokens ! (reffered to as CTs)
Thieves'guild :
Now and at the start of your next turn :
+1 buy, +$1.
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While this is in play, when an opponent plays a treasure, gain a CT.
Assassins'guild :
+1 buy, +$1.
Each other player reveals the top card of their deck and trashes it. Take a number of CTs equal to the cost of the most expensive of the trashed cards.
Ninjas'guild :
+1 buy, +$1. Take a CT.
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When another player plays an action card, you may reveal and discard this. If you do, he trashes that action card, doesn't play it and gains +1 buy and +1 CT instead.
Mages'guild :
Now and at the start of each turn :
You may trash a treasure from your hand. If you do, gain a number of CTs equal to its cost.
You may return a CT. If you don't, trash this, your deck, discard pile and hand.
Do not discard this during your clean-up phase.
Citadelles'guild :
-insert here a role of Citadelles that isn't yet used in the cards above or in Dominion-
Saboteurs'guild :
-insert here a good reference to the board game Saboteur, and not the card from Intrigue of course-