Generation 6

The 6th installment to the franchise, this generation made the move to the 3ds. This generation is well known for adding the new fairy type to balance out the dominating dragon types. They also added Mega Evolution as another form of evolution after reaching the final stage. These forms are only temporary and last only for the battle.

Mechanics
Weather effects from Gen 5 were nerfed to only lasting for 5 turns instead of forever. However the super harsh weather introduced in Omega Ruby and Alpha Saphirre lasts forever while the Pokémon is in battle. Fairy Types were a major addition to the game that weaken the powerful dragon types. Mega evolutio also made allowed otherwise weak Pokémon become much stronger or power up and existing Pokémon even more.