This can be beneficial if all your creatures fly, but it's also helpful if opponents attack each other, letting you profit from the action
For example, it might be a card with a friends picture on it for a birthday gift or other celebration
Mega Latias and Mega Latios are usually identical, except for their eye colors (yellow for Latias, red for Latios), so this subtle shading is helpful and aesthetically pleasing
Plus, you can burn through extra copies for a single blue mana
Hed also fit into the 99 of the Eleven and Mike deck, keeping a watchful eye out for strange goings-on as well as making sure that Eleven and Mike keep her bedroom door open while theyre studying. Hopper is another attack-oriented card much like Eleven, though his ability gets stronger the more you attack with nontoken creatures
Sleeving can take a lot of time to perform this procedure