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I have a team of all Autobots, including Captain Wheeljack in bot mode. I play Brainstorm, and as the first action, play Confidence. Do I play my second action for Brainstorm now, or do I resolve Confidence first and play an action via Confidence? Either way, this will trigger Captain Wheeljacks "When you play your third action" ability. Do I draw the card for that immediately, or do I wait until all the actions played via Confidence and Brainstorm have resolved?

Finish Confidence first (including possibly playing another action), then play your second action for Brainstorm. After thats done, all abilities that triggered while Brainstorm was resolving happen in an order of your choosing.
Source: Wizards of the Coast (2019-07-29)    【Link to Ruling】
Tags: Brainstorm, Brainstorm