This issue may need to be addressed in 8.1.3. I couldn't find a rule that resolves it.
I'm thinking specifically of most of Cervantes' support, and his built in ability, and how they interact with Driven by Ambition (the one where the art shows a boat driven by an ambitious pirate).
Driven by Ambition reads: "E Commit: Make a control check. Your next control check this turn is equal to that control check (no control check necessary)."
Sailor's Rest reads: "While this card is ready in your staging area, all control checks get +1. E Commit: If this attack deals damage, your next control check to play a card gets +1."
Cervantes' important ability reads: "R (5+): Before you make a control check to play a card, that check gets +1. Only playable while committed."
QUESTION 1: Let's assume Cervantes is committed (his ability is available).
I play an attack. During the Enhance step, I start prepping for my next form by using Driven by Ambition's ability. I make a check as part of the effect. I know I could potentially boost it with Cervantes, but let's assume I don't, and it's a 4. So now my next check this turn is equal to 4 (no control check necessary). Attack resolves.
I make no other control checks until I attempt to play my next form, a 4-diff attack, +1 progressive due to the previous attack, for a total of 5 diff. I know my check is a 4. Do I now get to play Cervantes' ability to potentially boost the check to a 5? I've been assuming "No" since I'm not actually making a check at this point. But 8.1.3 doesn't talk about checks being prematurely set to a given value, so I didn't want to assume for too long.
QUESTION 2: Let's assume Sailor's Rest is committed (no effect currently) and Cervantes is ready (his ability is not available, and we'll ignore it for this question).
I play an attack. During the Enhance step, I start prepping for my next form by using Driven by Ambition's ability. I make a check as part of the effect, and the result is a 4. So now my next check this turn is equal to 4 (no control check necessary).
Without making a control check, I play some ability that readies Sailor's Rest. OR my opponent plays an E that readies Rest. It doesn't really matter. Let's just assume that Sailor's Rest is readied before I play my next attack, and I'm not making any checks in the meantime. Attack resolves.
I now attempt to play my next form, a 4-diff attack, +1 progressive due to the previous attack, for a total of 5 diff. I know my check is a 4... but does it get +1 to a total of 5 since Sailor's Rest is now ready? Or has it already "been made" when Sailor's Rest was committed, so Sailor's Rest can't affect it now?
Thanks!