Valakut Exploration does require you to play lands in order to work, but thats a small price to pay for a three-mana draw engine in a format littered with four-mana cards like Chandra, Torch of Defiance, Outpost Siege, and more
Red also receives a sort of psuedo-draw in the form of exiling cards from the top of the library and then allowing them to be played until the end of turn or the end of your next turn, but if you don't use them in that time, they're gone for good
In addition to giving you a powerful Monster with 2,600 attack, Cryonic Coldos effect lets you make the duel more predictable by determining what card your opponent will add to their hand during their next draw phase
Mana Crypt took the ban for being too explosive
- All Clear against Cyver Dragon matchups
The purpose of the Extra Deck is to contain Monster cards that do not belong in the Main Deck