jomiculormph: As for the trickster path stuff, I can't confirm that either, though it's possible they may use something like the alcohol clutter items as consumables, similar to how other spells like stoneskin or raise dead consume diamond dust, diamonds, or some other item with each casting.
The one case of a Trickster ability requiring a material component that I am aware of is one particular spell that requires some gold coins. I believe you used to need 25 of the Gold Coin item to cast that spell, but getting that was impossible because this particular item doesn't enter your inventory if you do pick it up (it instead gets added to the amount of money you have); a patch (post 1.2, but before 1.3) made the spell cost money instead, so it can actually be cast.
Not actually sure about Trickster summons, however.