This is also why I don't care too much about the inaccuracies of this simplified model - I'm going off vibes anyways, I don't need anything super accurate
theyre only contained in collector boosters
As a battle resolves, its controller chooses one of their opponents to protect it
Once in play, it has an efficient, but not overpowered, attack, and a situational GX attack (that was mainly used against Blacephalon-GX).* * This description also fits Tapu Lele-GX and Zoroark-GX
Others expected strong limits to trading, citing other gacha games doing similar things
Raging Battle Mouse was definitely designed to support the celebration mechanic from Wilds of Eldraine , as it reduces the cost of your second spell each turn