Following on from finding out that you cannot cancel a cost ....
Can you treat costs as effects?
An example is
Player A has Tommen
Marshalling: Kneel Tommen Baratheon to draw a card.
Player B has Dockside Brothel
After an opponent's character is knelt by a card effect, kneel Dockside Brothel to have a unique [Lannister] character claim 1 power.
So if Player A kneels Tommen - to pay a cost - can Player B trigger Dockside Brothel
My group is saying that paying a cost can still be a card effect ... whereas I am sceptical and think a cost is cost and should not meet the brothels criteria
There have been several other instances of this but this is the first example that comes to mind - I am more concerned where a player is paying the cost and also getting the secondary benefit