6
Let's look at the exact wording on the cards:
"Skids" O'Toole
Whenever you roll a 1 during a test, you may reroll that die.
Composed:
When resolving a test, if you do not roll any 1's, you may reroll all of your dice.
You can trigger Skids' ability whenever you roll a 1 during a test, that is apparent.
Composed on the other hand is triggered ...
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