Sentry Oak is bad even if there were enough clash synergies to matter, which there arent
This additional step to the printing process has added more room for error, which is something misprint collectors like us love
This MTG commander gains life from attacking with bats, and there really aren't a lot of good cards for it outside of Bloomburrow
These would certainly be many years from now, though, when players who own Reserved List cards have left the game in big enough numbers to make a demand for it near-universal.
Burn spells can disrupt an opponent's strategy
The most detrimental aspect of a dragons playability is the fact that although very powerful, they usually cost 5-7 mana, and those expensive spells tend to see more EDH or sideboard play than as main deck Constructed inclusions