It's like the MTGO cube but sleeker (~360 cards) and with a more synergistic bent. That means combo decks, aggro decks, and control decks are all well-supported. Midrange decks focusing on winning with 4-5 mana value cards need a plan to deal with combo/aggro/control.
The power 9, mana crypt, sol ring, Minsc & Boo, and Oko are all located in a "power pack" accessible through Lore Seeker
Mana fixing is 2x fetches, 1x shocklands, 1x dual lands, 6 horizon lands, and a mix of 7 manlands and 3 shocks (temple garden sacred foundry and Godless Shrine).
Deck packages:
Reanimator --
Blue Control --
Artifacts --
Draw 7 Combo --
Brain Freeze Combo --
BR Control --
Red Aggro --
White weenies--
Mono Green --
Lands --
Build around cards: these cards are incredibly powerful if you can draft around them or pair them with other cards.