dark charizard pokemon card 21/82 Team Rocket #21/82 Non-Holo Trading – Rotterdam Comics Retreat Cost Pokemon Team Rocket Rare Dark

This is commonly referred to as splashing a color

Not Garp's definition

(2022-06-10) Choose a Background is a variant of the partner ability

Battles seem to be designed on similar principles to the original Planeswalkers mid-game objectives that add a strong sense of narrative to gameplay while also giving deck builders another reason to prioritize creature combat and board control

So, the bottom line for the mythics is this: the value is good, probably better than most people expect, putting the set on par with Modern Masters 2017 in terms of average mythic value, but the variance is going to be problematic for people only opening a small amount of the set