While weve not seen the entire set just yet, thanks to myriad leaks, weve seen a huge number of fantastically powerful cards
Locke doesnt even need to connect since its an attack trigger, so you can mug your opponents then lead Locke to safety with Maze of Ith or something
Being able to ramp the best land out of the top four cards of your deck at instant speed is already very useful, but the fact that you can still draw one of them into your hand as a fall back means that you wont have a major downside (see Growth Spiral for a similar effect)
Jason Coles 2 comments Best Games 10 festive Magic: The Gathering cards for Christmas Planeswalking in the Air
Grow from the Ashes offers the flexibility of an additional option: two lands for five mana
You dont need a big reason, just a real one: Snapcaster Mage alongside removal, countermagic, and so on