Species: attack forme deoxys

Source: https://bulbapedia.bulbagarden.net/wiki/Deoxys_(Pokémon)

Attack Forme Deoxys is the Forme of Deoxys that focuses on the attacking stats. In Gen III, it appears in this form in Pokémon FireRed.

While in its Attack Forme, its legs remain tapered. However, its blue stripes are no longer segmented and run the entire length of the leg and there is now a large spike on the knee. Two pairs of whip-like tentacles with pointed tips, one reddish-orange and one blue, replace its previous coiled, blunted tentacles. The protrusions on its head are now triangular with an additional one extending from the top of its head. Most of its reddish-orange skin has receded, revealing a striated, black chest and abdomen. Finally, its tail is now longer and more pointed.

Attack Forme Deoxys has the lowest base Special Defense stat of all Psychic-type Pokémon, and the lowest base Special Defense stat of all Pokémon, on par with Magikarp, Carvanha, Igglybuff, Caterpie, and Weedle. Its Attack Forme also has both of the lowest individual base stats of any Mythical Pokémon, those two being Defense and Special Defense, each with a base stat of 20.