Suppose I want to unslot a scimitar [3] andre, andre, andre, and I want all the card to keep.
Then I pay 5$ for process to begin.
(2 x 3) = 6$ for each card unslotted, another (2 x 3) = 6$ to keep the card.
So all in all I pay 5 + 6 + 6 = 18$.
Does this calculation true?
No.
It's like this:
-$5 just to BEGIN the process
-$2 for every card removed (which you keep)
-$2 if you want to keep the item that had the cards slotted inside of it
So yours would work one of two ways:
1)$11 ($5 to begin, 3x$2 cards removed [which you keep], scimitar is deleted)
OR
2)$13 (same as above except you add $2 to keep the scimitar [you didn't specifiy whether or not you wanted to keep it, so I'm including this just to be certain])