Kaito, Bane of Nightmares The solidly dependable hexproof shields Kaito, Bane of Nightmares from lots of removal
Otherwise, really good land to put in your GW Enchantment deck in Commander or Brawl
Legendary artifacts and equipment from Magics past are now eligible commanders, opening up hundreds of new deck building possibilities
Heliod, the Radiant Dawn / Heliod, the Warped Eclipse Heliod, the Radiant Dawn is just an oversized Auramancer, but transform this baddie and you get Heliod, the Warped Eclipse, a Phyrexian god that converts opponents card draw into cost reduction for your spells
Making decks is difficult
I think early pack two is a good point to decide what to commit to, but again, it's way too early to delineate a successful strategy, so take this with a pinch of salt