✨ Synchronize | Gen 8

Effect:

Whenever this Pokémon is burned, paralyzed, poisoned or badly poisoned, the Pokémon who gave this Pokémon that condition is also given the condition. This ability passes back bad poison when this Pokémon is badly poisoned. This ability cannot pass on a status condition that the Pokémon did not directly receive from another Pokémon, such as the poison from toxic spikes or the burn from a flame orb.

Effect Outside Battle:

If the lead Pokémon has this ability, wild (Excluding fixed encounters like Calyrex, Zacian etc.) Pokémon have a 100% chance of having the lead Pokémon's nature.

Synchronize is introduced in Gen 3: