Gogo, Master of Mimicry Rating: 4/10 Im sure Gogo, Master of Mimicry is capable of some really dumb interactions, but it seems too situational and expensive to be quite as broken as Im sure it might be in other formats
Usually for simplicity of message, and for inventory reasons, the store owner wants to give away one type of booster
You can easy put these creatures all together to form a dedicated ninjutsu deck
Versatility, card filtering, and control elevate gameplay
It is most akin to countermagic in that it can deal with anything, it is one of the few things than can stop instants and sorceries from happening and it suffers the drawback of being time critical
Note that the white and blue creatures only count your graveyard the black creature cares about your opponent's graveyard, and the green creature cares about all graveyards