6/6 Illustrated by Zack Stella Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Not Legal Modern Legal Brawl Not Legal Legacy Legal Comp
As far as I could tell, they conformed to all the required specs for the size of a Magic card
A permanent card is an artifact, battle, creature, enchantment, land, or planeswalker card
for non-gaming card frame making, it frames professional cards such as invitations and business cards
It is the best winning card among the spells that can be drawn with Tibalt, and it is possible to directly give all kinds of super-sized permanents, such as Ugin the Spirit Dragon in Standard and Ullamok the Endless Hunger in Historic, as well as hardcasting such cards with a large number of earth lamps
In essence, every MDFC is a slightly overcosted spell combined with a slightly underpowered land (thanks to coming into play tapped or costing three life to come into play untapped, in the case of the mythic MDFC cycle, and only tapping for one color of mana)