mggarofalo · 3
This deck has a few moving parts, so I'll cover them in general sections.
Thwarting:
Cyclops has very little thwarting built in, so a Justice deck means relying more on aspect cards like Marvel Girl, who removes threat equal to a targeted minion's SCH (and with Game Time she can do this multiple times per round, which is great when the right minion shows up), Storm (who can take 4 threat off of a critical scheme at the right moment), and Overwatch. In case you can't tell, the allies here are important, so:
Allies:
Beast is good value (3ER for 2/2/3) and Cyclops's deck-building exception means we should make use of it. Add Mission Training for a total of 5ER (4ER in alter ego with Danger Room) and he's a 3/2/5 ally.
Blindfold's Psionic trait allows us to enhance Cerebro by searching the whole deck for an X-Men ally and has the added benefit of discarding a bad encounter card from the deck when she enters play.
Colossus is a blocker who can get a good hit or two off after he takes an attack for you and Polaris helps with a little damage and effectively blocking an extra attack.
These allies can all be tutored by Cerebro if they haven't been discarded and Blindfold is in play, or if Cerebro can't help then Chance Encounter can pull them for you, with the advantage of pulling from either your deck or your discard pile. If you're in alter ego, exhaust Danger Room to find a Mission Training if you've pulled Beast, Storm, or Marvel Girl. While you or another Mutant player is on alter-ego, X-Mansion can heal a consequential damage from one of these allies to give them an extra round and, as mentioned above Game Time can do that and ready the ally if you're in hero form.
Resources
Resources are a little tough to justify because there are only 3 targets for The Power of Justice and only 6 for The Power in All of Us. Since there are 18 cards here that cost 2 or more resources, it's hard to argue that the deck needs substantial resource generation, but a Helicarrier is almost always a good idea. The X-Jet would also be fine as a 41st card, to give you a few extra card plays over the course of the game; to get back to 40, I'd drop one copy of Overwatch, as it's the most likely to lack a target when a third copy is drawn, or one copy of Chance Encounter, as there are still two other tutors available.