Its attack is quite high because this is a single-prize Pokmon, but the attack cost is just too high
This gave the world time to expand and the sets to have a similar feel while carving out their own identity
Wretched Gryff, seen below, is an Eldrazi Hippogriff with a normal casting cost of seven mana, but can be cast with its Emerge cost if another creature is sacrificed
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)