The first question everyone asks is about value
This allows you to combine the best cards from each deck, enhancing your overall strategy and making your deck more powerful
Trostani is actually three sisters fused to the MatSelesnya world tree that connects members of the Selesnya conclave
We may, therefore, see it return to the Game Changers list before long
Fill your deck up with discard effects like Demand Answers, a few super-cheap artifacts like Tormod's Crypt, and then a ton of huge, game-winning effects: Portal to Phyrexia, Threefold Thunderhulk, Platinum Angel, Wurmcoil Engine, the works
Mechanics in the style of defender have been in the game since Alpha, when the Wall creature type was introduced