Keep the Heroes Out!

No. Resolve actions individually in any order, splitting them among your Monsters in the dungeon; you may also leave actions unused. (p. 6)

No—each player resolves a Heroes Invasion at the end of their own turn. The number of Guild cards depends on the difficulty and wave. (pp. 5, 10)

Have a Monster activate the appropriate room, then discard its matching resource—for example, a Bone at the Beast Trainer to take a Beast card. The acquired card goes to your discard pile, and the Loot display is immediately refilled. (p. 7)

No. Completed Portals connect rooms for Monster movement only; Heroes ignore Portals when moving. (p. 6)

If the entering Hero survives any trap there, they Inspire all exhausted Heroes in that room, turning them active; those Heroes must then be resolved too. This can happen when a Hero is summoned or charges into the room. (p. 11)

Yes. Once per turn, you may draw the top Guild card without a Monster or an Activate action; a Hero card sends that Hero exhausted to the Cells and lets you draw three Tactics cards. Be careful: a Mage summoned there reactivates the imprisoned Heroes. (p. 8)