He says the decks will include: A white card that can phase out your own creatures A Legend with the rules text 'whenever an illusion you control dies' A cursed version of a previous D&D-inspired magic card A new card with the Melee mechanic A card called Ride the Avalanche A card which uses 'Component' counters A Land which can remove an Artifact, Creature or Planeswalker from the battlefield A new 'Enchant Player' curse The creature type line 'Beholder Skeleton' An equipment with 'Equip: 10' A card with the ability "Until end of turn, Permanents your opponents control gain" A card which grants some of your spells Cascade More information about the commanders' in-game abilities (and thus the likely strategies on which their decks will function), the alternate monster commanders, and other new cards within each deck, are being revealed on July 2 by a variety of sites and channels: Draconic Rage - LoadingReadyRun Planar Portal - MTGGoldfish Dungeons of Death - MTG Muddstah Aura of Courage - The Command Zone Monday's reveals came on the first day of Adventures in the Forgotten Realms' Preview Week event, Verhey said, promising daily updates for the rest of the week, with "art, preview cards, stories, hints, and more about what you can expect in the set"

These games are controlled by Konami, and played by official tournament rules
There are usually 5 possible cards you can get in a promo pack, so keep doing the battle challenges until you unlock them all
It's by far the best of the bunch if you want a ton of sweet legends, both new and old, but it doesn't hold up well in any of the finance value categories