Swellow

If its two tail feathers are standing at attention, it is proof of good health. It soars elegantly in the sky.

Agility (20): Flip a coin. If heads, prevent all effects of attacks, including damage, done to this Pokémon during your opponent’s next turn.

Swallow Dive (40+): If this Pokémon used Agility during your last turn, this attack does 80 more damage.