>>45921512>it would be at worst just as good as Tapu Bulu which is itself only UU because it is massively outclassedTapu Bulu was OU in Gen VII as an offensive Ash-Greninja check. All four Tapus were used as Greninja checks because Greninja even in base form destroyed Heatran and Lando, and in turn Heatran checked all 4 fairies. This equilibrium is why Clefable fell down to UU for a while in Gen VII.
The use of the four fairies relegated Breloom to UUBL, because it was cucked by all four terrains and the typing. Hence why Kartana, who isn't a priority user, filled Breloom's place as an offensive Grass/Steel.
Breloom falling meant that Mega Scizor, Mega Medicham and Mega Lopunny became the premier priority revenge killers, leading to more Lando usage as a soft check to them.
In Gen VII, there is no place for an offensive Grass due to no Ash-Greninja warping the meta around it broken. Rillaboom makes due because Grassy Glide is 70 BP. If it was 40 BP like other priority moves, it would be too weak to justify in OU.
U-Turn, Knock Off, a good spread and ability do not make up for a subpar typing (see: Incineroar). Offensive mono grass is bad.
