I love this in Commander as a way to shut down a nasty Commander that needs to be answered and you don't want to kill or exile it so that they'll recast it with the Commander Tax, you need a more permanent answer
(4/18/2017) If the card has X in its mana cost, you must choose 0 as the value of X when casting it for another cost that doesn't include X
Graveyards in Commander are like a second hand
Reach, trample Enchantment Creature Standard Pioneer Alchemy Historic Timeless Competitive Brawl Historic Brawl Constructed Standard Stats 48.9% 0.1% 53.0% 530 Limited Final Fantasy Stats 56.1% 4.2% 62.2% 1,300
5 Redress Fate Miracles Do Happen Let's say you're playing a mill-heavy deck that's full of enchantments and artifacts (such as can be enabled by a later card on this list)
When it's defeated, exile it, then cast it transformed.) When this Siege enters, look at target opponent's hand