Marvel United

Yes — you may use the bottom action symbols on the Hero card you just played AND the bottom symbols of the previous Hero card in the Storyline (even if a Master Plan card is between them); special effects above those cards are not shared. (pages 7–8)

The Villain adds 1 Master Plan card at the start and normally after every 3 Hero cards; once the first Mission is completed the Villain is "Under Pressure" and Master Plan cards are added after every 2 Hero cards. (pages 5, 9, 12)

No — Heroes can only damage the Villain after they have completed at least two of the three Missions; until then you can damage Thugs and Henchmen but not the Villain. (pages 8, 10)

For each damage you discard a card from your hand to the bottom of your deck; if you discard your last card you are KO’d (lay your figure down), immediately resolve the Villain's BAM! effect, and on your next turn stand up and draw up to 4 cards. (page 10)

Henchmen-type Threats lose Health tokens from attacks until removed; other Threats are cleared by placing the required Heroic Action tokens (usually 3); when a Thug is defeated or a Civilian rescued, place that token on the appropriate Mission card if there is an empty slot (otherwise discard it to the pool). (pages 8–9)

When the Villain adds Thugs/Civilians clockwise to Locations and a Location has no empty slots left, the Villain Dashboard’s Overflow effect is triggered (follow that dashboard text to see what happens). (page 6)