Confused Yeti Edition.
(Official Asian English website)
(Official Global English website)
Keep checking your local LGSs, resupply is in progress. BT-04 is now officially released in the west!
If you can't wait and have no other options, your best bet to get cards right now is singles from places like TCGplayer (see links section).
Never buy precon decks for over $15 (MSRP $10), boosters for over $6 (MSRP $4), or boxes for over $120 (MSRP $92). Don't feed scalper faggots.
QRD color overview:
Unga bunga. Better DP gain and Security Attack than other colors.
Unique-ish mechanic is Advance
Advantage. Gains memory, draws cards, multiple attacks, and Jamming.
Unique mechanics are evolution source removal and playing Digimon from the evolution stack.
Removal: bounce and tuck, and sometimes "can't attack or block"
Control and recovery. Lots of cards that debuff enemy Digimon.
Unique mechanic is Security Recovery/ Manipulation.
Removal: reducing DP
Fast and cheap evolution; control through battle. Also has the most Digi-Burst.
Unique mechanic is Digisorption.
Removal: suspending and attacking direct
Digimon sacrifice, Graveyard, and Option card synergy.
Unique mechanic is Retaliation. Unique-ish mechanic is revival.
Removal: level-based direct destruction
Defense, and weird gimmicks. Higher than average access to level 7s. Security "trap" Digimon. The devs are apparently aware and working to better define this color.
Unique mechanics are Reboot and Decoy.
Removal: De-Digivolve and cost-based direct destruction
Not quite a real color yet. Mostly level 7s and their support, and some gimmick Digimon.