Lord Slug

Appearance:Lord Slug like most Namekians has a tall stature, green skin, black eyes, and two antennae. He has a large cut on his left eye and two ear plates over his ears. He wears a black, hooded cloak, along with an orange and brown scarf around his neck. Black shoulder blades, brown medallion with straps on it and yellow undercoat under it. In his old age, he possessed many wrinkles on his face and a less muscular stature. Upon regaining his youth his wrinkles became gone, and his muscular stature returned.

Personality:
Ruthless
Power-hungry
Cunning
Arrogant
Dominant
Vengeful
Sadistic
Aggressive
Merciless
Destructive

Likes:

Power
Dominance
Subjugation
Destruction
Terrifying others
Gaining immortality
Dark, cold environments
Displaying strength
Expanding his empire
Creating chaos

Dislikes:

Weakness
Saiyans
Opposition
Warmth
Earth's environment
Disobedience
Defeat
Losing control
Optimism
Peace

Hates:

Goku
Losing battles
Heroes
Being outmatched
Interference in his plans
Bright lights
Warm climates
The idea of mortality
Younger Namekians
The Dragon Team

Loves:

Power
Control
Fear in his enemies
Conquering planets
Immortality
His spaceship
His army's loyalty
Achieving goals through force
Seeing his enemies suffer
Exploiting weaker species
Having Fun with Allies or people as strong as him.

Power:Being a Super Namekian, Slug has immense power. Slug states that if he was still his aged self, Goku may have been able to defeat him. Restored to his prime he was able to dominate Goku Effortlessly. Even when Goku punched him in the face, Slug barely moved with the punch having no effect. However, Goku surpassed him as a Pseudo Super Saiyan. Unfortunately, the tables turned once Goku's Pseudo Super Saiyan powers faded, and Slug transformed into his Great Namekian form. In this form, Slug nearly killed Goku. King Kai guessed that Slug was more powerful than Friezaand Goku's Pseudo Super Saiyan form. However, like other Namekians, Slug's weakness is the sound of whistling and as a Great Namekian, the sound is heightened up to a hundredfold, becoming absolutely unbearable in his form who has eardrums the size of trash cans. Ultimately, it took Goku piercing through him with a Kaio-ken x100, and then following up with a Spirit Bomb to kill him.
Extra Attributes:

Namekian origin
Superhuman abilities
Ability to grow in size
Command over an army
Uses dark magic
Has a giant asteroid spaceship
Wears a dark cape and helmet
Regenerative abilities
Seeks Dragon Balls for immortality