[Life Drain and Coordinated Fire]

I have a question regarding Life Drain and Coordinated Fire. Life Drain triggers “after a … character makes an attack” and coordinated fire triggers “when a … character makes an attack,” however, only 1 can be used per attack as the triggering event for both is “an attack.” Is this correct?

[Your hatred makes you powerful vs Mind Trick timing]

If Darth Vader, Jedi Hunter makes an attack targeting Obi-Wan Kenobi, Out of Hiding, does the Darth Vader player have to choose whether to use Your Hatred Makes You Powerful before the Obi-Wan player chooses to use Mind Trick, because both abilities would trigger in step 3b and the attacker's abilities trigger first? Or does the timing of Your Hatred Makes You Powerful being "after choosing a target" mean that the choice occurs at the beginning of step 4 after all of step 3 is complete?

[Deadpool and All You've Got]

If Deadpool plays All You've Got while injured, would he be dazed instead of KO'd due to Alright, Now It's Serious?

[Collector format Infinity Gems]

Are gems allowed in collector? If so, do they take up a character slot or a tactics card slot in the booster pack.