I've found a usable source for the Unfinity symbol, but haven't vectorized it yet
The backside is a 4/4 flier with trample and an ability that flings two damage at any target whenever a dragon you control attacks
While the "ease of flipping" category is, in large part, a product of the number of defense counters on the battle (battles range from three to seven defense counters, and a battle with three defense counters will be much easier to flip than one with seven), it also takes other factors into consideration, like whether the battle makes creatures (if so, we can use them to help defeat the battle, making it easier to flip) or whether the battle acts as removal (which can get a blocker out of the way, making it easier to attack and defeat the battle)
See the full ranking in the Best cards section above
For the purposes of this article, a cards worth or value is defined as its TCGplayer low price -10%
Alternate art