The main thing holding this deck back is its narrow interaction
Here are just some reasons why these customized playing pieces hold great significance
You get what you see, make sure to double click on images to zoom in and verify sharpnessMorophon, the BoundlessK'rrik, Son of YawgmothEdgar MarkovEzuri, Claw of ProgressThe Gitrog MonsterGrand Arbiter Augustin IVKarlov of the Ghost CouncilMizzix of the IzmagnusNicol Bolas, the RavagerNicol Bolas, the ArisenZacama, Primal Calamity
On top of that, Mark Rosewater, Magics Head Designer, has spoken many times on Blogatog about how unlikely the idea is to be used again
It's indestructible, making it a hassle to get rid of to ensure you keep getting value out of its abilities
o:/^ 3 :/ This search gives us all cards with effects that cost exactly 3 generic mana, with no other cost