Dexter's Powertul

Powertul is Dexter's first ever Blastromon, and is generally considered to be his Ace.

Powertul debuted in Episode 1, as a Juvenail, under Dexter's command. He morphed in Powertul in a battle against Moses' Bangolin, and as remained a staple of Dexter's Entourage ever since.

Physical Description
As a Juvenail, he was a 4'3 orange monster, based on a nail, albeit with a spiral, as if he were a screw. He had a black enclave underneath his cap, with two yellow eyes that glowed. He had short legs, and thin, wirey arms.

As a Powertul, he bulked up considerably, with a more robotic-looking chasis. His left arm became a massive nailgun-esque machine, from which he was able to use his most deadly attack, Nailem Gun.

Personality
As a Juvenail, he was remarkably timid and nervous, known for a nervous jitter whenever he was to face a particularly threatening Blastromon. Despite his offensive strength chops, Juvenail was remarkable fragile, often getting badly bent and dinged up.

Upon his metamorphosis, Powertul gained a bit more confidence, and for more part lost his jitter. However, he was still a timerous Blastromon, and his jitter would return in times of immense pressure, such as his finally battle again his archrival.

Attacks

 * Bluster; His main attack as a Juvenail. With it, Powertul was able to create bursts of burning air, raising his attack power, but lowering his defense. However, as a Powertul, he lost some of his speed and became a defensive fighter, Powertul rarely uses this gambit.
 * Friction Burn; Powertul spins around, using the air friction, heating up his metal body, before dispersing that heat downwards.
 * Nailem Gun; His signature move as a Powertul, an extremely deadly attack, that, using his massive metal arm, fires giant nails into the bodies of enemy Blastromon. This proves to be deadly most of the time, but certain Blastromon have proven to be able to witstand the attack.
 * Rejuvenate; Using hot air, Powertul blasts his own body, removing dents and impurities, temporarily repairing damage to his corporeal form.

Trivia

 * Given Dexter's status as an Ash parody, Powertul could be considered a stand-in for Pikachu, being his first and most powerful creature.