Storm Cauldron returns lands to your hand when you tap them, so you can actually make as much mana as you are willing to pay life
These make the set a huge hit
Furthermore, a lot of the fan creations surpass the quality that is offered by Nintendo and show unique ideas that the company wouldnt normally tackle
Speaking of characters that can shift, Sisu, Empowered Sibling is a very solid character that can turn a game in a single turn
If coin, the opposing paralyzed is now Pokemon
The Pitch card spells that can be cast for no Mana by discarding or through a similar penalty were first introduced in Alliances, one for each color and resembling an existing card: Bounty of the Hunt resembles a more versatile Giant Growth, Contagion serves as a double Weakness, Force of Will acts like a Counterspell, Pyrokinesis resembles Pyrotechnics and Scars of the Veteran acts like a huge Sacred Boon