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This was written in Rules Roundup 10/11/19:
I play Brainstorm. Using my 2 actions, I play Ancient Wisdom first, then System Reboot. I draw Unleash Potential off of System Reboot, do I get to play it for free now?
Both Brainstorm and Ancient Wisdom resolve top to bottom. When you play Brainstorm, then you play Ancient Wisdom, you must play Unleash Potential at that moment. In your case, youve moved past Ancient Wisdom and are continuing with Brainstorm, playing System Reboot. Its now too late to play Unleash Potential with your previous Ancient Wisdom.
Would this rule also apply to Tech Research? You must play a Superior upgrade after playing Tech Research or else that Tech Research is not forfeit. Example: I play Brainstorm first, then I play Tech Research, then I play Medic. Can I play Superior Jetpack?


Superior upgrades only check to see if you have played Tech Research at some point previously in your turn. Therefore, there is no issue with playing other cards between Tech Research and a Superior upgrade.
Source: Wizards of the Coast (2019-10-25)    【Link to Ruling】
Tags: Tech Research, Brainstorm, Brainstorm