While I understand this is to entice players to purchase collector boosters, Im not a fan of hiding away some of the cards in a collector booster
Harald Unites the Elves CMC: 2(BG) Type: EnchantmentSaga Rarity: Rare One: Mill three cards
You might laugh, but provided you have a one or two toughness guy to pin with this, youre getting a huge +4/+0 and trample to the team, at instant speed, in red
PLAY IN STYLE
These unscrupulous individuals buy up stock in bulk to resell at an absurd mark-up, which is why you'll often see Final Fantasy cards going for a ridiculous price
Still, once it resolves, you can choose how to kill your opponent slowly by either casting spells from the top of their library without paying mana, shrinking their hand, killing their creatures, and, if they've survived long enough, exiling all their non-land permanents with the ultimate