[quote=@Izurich]
[b]IC Reason(s)[/b]: 
-We have established that Mythic grimoires aren't hilariously overpowered compared to the lower tiers. A single mythic can be overwhelmed by, let's say, 3 Legends (or 6 Fables) if the group knows what they're doing. [b]Wendil can CMIIW me on this though.[/b]
[/quote]


[quote=@Lewascan2]
I'd imagine so. Powerful or not, Magical Girls practically specialize in overcoming far superior opponents with the Power of Friendship. Get a group of them together, and they can and will pull miracles out of their asses, no matter the odds.
[/quote]

This and this. Grimoires are sources of raw and untapped power. Individually, if a Magical Girl lacks the skill and experience to use and manage that power, that ends up becoming more a liability than a strength. Through teamwork is this mitigated and why the Ministry promotes it strongly.