Ultimate Skill

Ultimate Skills are evolved skills that are nearly impossible to obtain. Any beings (human, demi-human, monster, demon) can obtain them.

The specific requirements to obtain an Ultimate skill are quite vague. However, it seems that those of very high ability are able to develop them. The majority of Ultimate skill users are quite old (hundreds of years old). The younger Ultimate skill users developed them once becoming a True Demon Lord.

Ultimate skills are able to be bestowed upon by one's master, but in a much weaker form.

Known Ultimate Skills

 * Lustful King Asmodeus
 * User: Ruminas Valentine
 * Skills:
 * Gluttonous King Beelzebub
 * User: Rimuru Tempest
 * Skills: Predation, Analysis, Stomach, Mimicry, Segregation, Decomposition, Supply, Food Chain, Soul Eater
 * Greedy King Mammon
 * User: Kagurazaka Yuuki
 * Skills:
 * Wrathful King Satan
 * User: Millim Nava
 * Skills:
 * Prideful King Lucifer
 * User: Guy Crimson
 * Skills:copy up to 90% of other Ultimate Skill powers
 * Storm Dragon Veldora
 * User: Rimuru Tempest
 * Skills: Storm Dragon Summon, Storm Dragon Release, Storm Dragon Magic Archive, Bladed Storm: Crystalization
 * Space-Time King Yog Sothoth
 * User: Chloe O'Bell
 * Skills:
 * Investigation King Faust
 * User: Veldora Tempest
 * Skills: Thought Acceleration, Appraisal, All of Creation, Probability Estimation, Pursuit of Truth
 * Purity King Metatron
 * User: Leon Cromwell
 * Skills:
 * Hope King Sariel
 * User: Chloe O'Bell
 * Skills:
 * Charity King Raguel
 * User: Velgrynd
 * Skills:
 * Covenant King Uriel
 * User: Rimuru Tempest
 * Skills: Spatial Domination, Defense Barrier, Infinite Prison, Seclude Space
 * Wisdom King Raphael
 * User: Rimuru Tempest
 * Skills: Thought Acceleration, Appraisal, Parallel Processing/Analysis, Chant Annulment, All of Creation, Fusion, Separation, Though Analysis and Judgement
 * Justice King Michael
 * User: Ludra Nam Ul Nasca
 * Skills: Regalia Dominion (Sovereign Rule)
 * Sandalphon the Executioner
 * User: Tatsuya Kondo
 * Skills: Divine Edge
 * Death Zone/Hell King Belial
 * User: Testarossa
 * Skills:
 * Poisonous/Poison King Samael
 * User: Ultima
 * Skills:
 * Death/Extinction King Abaddon
 * User: Carrera
 * Skills:
 * Chaos King Nyarlathotep
 * User: Veldora Tempest
 * Skills:
 * Slothful King Belphegor
 * User: Dino
 * Skills: Fallen Hypno (Slothful Sleep), Fallen Catastrophe (Temptation towards Destruction) and Fallen Strike (Fallen Heaven Strike)

Possible Ultimate Skills

 * Envious King Leviathan
 * Scorching Dragon Velgurind
 * Ice Dragon Velzado
 * Wisdom God Ciel