This is, in theory, a great catch-up tool for Mono-Black midrange against faster strategies
(Each of those creatures can deal excess combat damage to the player or planeswalker it's attacking.) Sorcery Color tag templates(None) Overwhelming Stampede Until end of turn, creatures you control gain trample and get +X/+X, where X is the greatest power among creatures you control
If you somehow lose control of that commander before you finish casting the spell (perhaps because you sacrifice it to activate a mana ability), it won't change the number of modes chosen
So when I see a card like Harness the Storm spoiled, I need to take a seat
According to MTG Head Designer Mark Rosewater and Lead Developer Erik Lauer, they were concerned about people not getting the basic drafting strategies in Khans of Tarkir
Players can use Brainstorm, then use a shuffle effect, such as a fetchland, to shuffle their deck