Also, pulling a land out of your deck, or drawing that card off of this spell ensures your hand wont be hurting too much after it resolves
His abilities let him draw and then discard a card, phase out a creature you dont control, and take two extra turns
Aurelian Gyrosensor works as a sorting hat for you to get the right cards you need
Steam Rollers: Big cards that our opponent must answer, or we will run away with the game
Even off-color signets can be inordinately useful if you have enough stuff to ramp into
You'll also see copies of Gideon, Ally of Zendikar (planeswalkers are great examples of reach) as well as Always Watching, an enchantment that gave your team +1/+1 and vigilance, keeping them relevant even if your opponent managed to play some big blockers