Overgrow — Effect & Pokémon (Pokémon Champions)

Effect: Powers up Grass-type moves when the Pokémon's HP is low.

Description text is the mainline series' official wording. Pokémon Champions generally matches this behavior, though a few details may differ.

Pokémon with Overgrow (12, by base stat total)

Pokémon	Type	HP	Atk	Def	Sp.Atk	Sp.Def	Speed	Total
Mega Chesnaught	GrassFighting	88	137	172	74	115	44	630
Mega Meganium	GrassFairy	80	92	115	143	115	80	625
Sceptile	Grass	70	85	65	105	85	120	530
Chesnaught	GrassFighting	88	107	122	74	75	64	530
Decidueye	GrassGhost	78	107	75	100	100	70	530
Hisuian Decidueye	GrassFighting	88	112	80	95	95	60	530
Meowscarada	GrassDark	76	110	70	81	70	123	530
Serperior	Grass	75	75	95	75	95	113	528
Venusaur	GrassPoison	80	82	83	100	100	80	525
Meganium	Grass	80	82	100	83	100	80	525
Torterra	GrassGround	95	109	105	75	85	56	525
Simisage	Grass	75	98	63	98	63	101	498