A lot of these cards would change the format for the better and allow for new avenues of gameplay and deck construction
Dumping a lot of lands with this ability won't just put you ahead on mana, but also thins out your deck and makes it more likely that you draw the cards you need to win
Development playtests are much closer to what the players play and as such development wants to put it through realistic playtests
A transforming double-faced card enters the battlefield with its front face up by default, unless a spell or ability instructs you to put it onto the battlefield transformed or allows you to cast it transformed, in which case it enters with its back face up
Manipulating your top deck isn't something that's too powerful, but it's all the things that Sensei's Divining Top enables that make it a problematic permanent
This keeps the initial experience much easier to grasp, while ensuring that the players will learn all of the game by the time they have received all of the packs AN IMMERSIVE TRADING CARD GAME Wield magic inks and the power of Lorcana to assemble your team of Disney characters