(2007-09-16) The opponent is chosen when the at end of turn triggered ability resolves
First, its got the connected artwork angle, making it a must-have for collectors looking to complete the set
Speaking of Angels, the GW versions will be overjoyed to see some more card advantage for their builds
This allows you to track your progress, show off your best hits, and watch your collection grow over time
The ability to cast spells for life instead of mana is powerful, but at 5BB, it feels too expensive for what it does
(You may cast cards from your graveyard for their escape cost.) If The Master of Keys is no longer on the battlefield when its second ability resolves, you'll still mill twice X cards