For this combo to work, we need our commander, Intruder Alarm, a Room that makes a creature when we unlock it (Grand Entryway // Elegant Rotunda, Smoky Lounge // Misty Salon, Unholy Annex // Ritual Chamber, Spiked Corridor // Torture Pit, Dollmakers Shop // Porcelain Gallery or my favorite Mirror Room // Fractured Realm), and an untapper (Kioras Follower, Vizier of Tumbling Sands, or Kelpie Guide)
Serra Angel is also an excellent blocker, as it does not tap
While linearity doesn't necessarily create a bad map design, if it is too obvious, it can definitely hold it back
Since blue had a disproportionate number of evasion creatures compared to the other colors in a block filled with very low-powered cards, Coastal Piracy allowed the blue mage to draw multiple cards a turn in the hopes of keeping up with the white mage and his ever-growing arsenal of tutored rebels