Biosynthic Burst
Even if you reject Land Tax and decide to play a more stock U/W Control deck, please take away the lesson of the Land Tax mana base. A key to the success of this archetype is being able to reach four, five, and six mana without your more aggressive opponents Wastelanding you back to 1997
This is one of those decks where I would not feel ashamed playing Fireball, Comet Storm, or Banefire, because I know that the X cost in those spells can be enormous with the right board state
It also encourages creatures to block, which might keep the board less gummed up
Different abilities will trigger each turn, during which the Saga Creature can attack or block just like any other creature
Here are the five Tarkir Dragonstorm Commander decks: And here's every one of the decks' Commanders and alt-Commanders: These decks didn't cost $70, like the MTG Final Fantasy ones