MaahirMomtaz12 said: It doesn't work like that. If that was the case, then Mega Slowbro and Mega Latias would've dropped cause their usages are low right now Click to expand...

Technically Q10jj is correct, though the end result doesn't make a difference as far as relevant tier shifts go unless NU decides to retest it (while if Typh remains RU, NU cannot retest it).Stuff like Mega Slowbro, Mega Latias, Mega Garchomp, and Mega Tyranitar cannot drop to BL since they need to be tested and banned from UU first (which is what defines a Pokemon in BL; Mega Medicham and Mega Gardevoir are still technically BL despite having reached OU status since their ban), which is impossible since their base formes have never even touched UU since their Mega's inception, which of course means the Mega cannot be tested in UU to be banned to BL. The 'Megas in BL' thing only applies if their base formes can be used in UU and below, such as Altaria, Gallade, Heracross, Pidgeot, etc; since their base formes are allowed in UU in below, the respective Mega Stones need to be banned to BL to prevent the Mega Pokemon from being used in those tiers.