
Greninja-Mega is listed as a Water/Dark type in the current Pokémon Champions format, with usage data pulled from competitive teams, tournament results and Showdown-ready pastes tracked by MetaVGC. This page brings together its most common moveset, nature, ability, item, teammates and type weaknesses so you can judge where Greninja-Mega fits in a VGC team.
The most common build highlights Protean, Greninjite and Timid 2/0/0/32/0/32. Its frequent moves include Hydro Pump, Ice Beam, Dark Pulse, and Protect. Treat those choices as a data-backed starting point: they show what players are bringing, while EV spreads, Tera Type and the final move slot should still respond to your expected matchups.
Defensively, Greninja-Mega has important weaknesses to bug 2x, electric 2x, fairy 2x, fighting 2x, grass 2x. That matters during teambuilding because a strong composition needs ways to cover those attacks without giving up offensive pressure. Partners such as pelipper, archaludon, corviknight, sneasler, and rotom-wash appear often because they can add positioning, type coverage, speed control or safer switches into common checks.
MetaVGC tracks recent teams using Greninja-Mega. Open the Greninja-Mega teams page to compare complete structures, copy Showdown pastes and see how players combine Greninja-Mega with other Pokémon in the active format.