A few years ago, the loophole was closed when the policy was expanded to include never printing these cards in any shape or form that is tournament legal (promos, duel decks, archenemy, etc.) To this day, Wizards hasnt shown any sign of changing the policy, with staunch promises from several high-level employees that the reserved list is here to stay
There is synergy to be had with Draconic Roar and similar to the much too brief life of Sliver Hive, there is a non-basic land 'Haven of the Spirit Dragon' to assist
The sheer number of flyers that can block and kill Akroma, especially without dying, is quite small
Certificate number may vary if we have multiples available
Minwu, White Mage would also be a must: every time you gain life, she puts a +1/+1 on each cleric you control