Keeping a list current is one of the clearest ways a resource earns repeat visits and long term trust
Rainbow was no longer a fun chase card, that was arguably better than a normal full art in some instances, but a middle of the road variant that was outshined by alt arts and bloated up a set to unreasonable numbers
until the end of this turn, this card gains ATK equal to half that monster's current ATK, and if it does, that monster's current ATK is halved
These are special cards that have no mana cost or color that start the game in your command zone
Heres a little mockup courtesy of a Reddit post from six years ago: The green lines are the left arm, and the red lines highlight the right arm
These are also great for MTG,Cards against humanity, exploding kittens, what do you meme, and many other family card games