In the official announcement article, Wizards noted that these cards are getting the hammer Due to their power level, ability to accelerate mana, and/or status as free spells. The latter point easily explains two of the pre-bans here, Fireblast and Pyrokinesis
First and foremost we're adding the final great Vampire Aristocrats: Vito, Fanatic of Aclazotz, Pawn of Ulamog, Vraan, Executioner Thane, Voldaren Bloodcaster, all are vampires that provide payoffs for sacrificing things
Below is another plot using the same deck, but using a slightly more sophisticated agent, which mulligans if it has less than three lands, up to a minimum hand size of five, and prioritizes cards to play as follows: 1) untapped land if it would enable playing other cards, 2) ramp, 3) card draw, and 4) randomly picking a card from among the remaining playable cards
Despite the fact that it comes back with three +1/+1 counters, Voracious Typhon will be really hard to bring back more than once or twice during a game
Players continue this process until all eight of their packs have been drafted