Gigantamax
A mechanic that changes both the size and the shape of a Pokémon. Only certain Pokémon are able to Gigantamax. With Gigantamaxing comes a G-Max Move that a move corresponding to its type becomes, for example Bug type moves Butterfree knows become G-Max Befuddle.
“I’ll show you the strength of my blazing spirit! Sandaconda, Gigantamax!”