King Sombra is a male unicorn, the former tyrannical ruler of the Crystal Empire, and the antagonist of the season three premiere of My Little Pony: Friendship is Magic. Princess Celestia tells Twilight Sparkle that he took over the Crystal Empire a thousand years ago, but was banished into the frozen north. Before his banishment, King Sombra put a curse on the Crystal Empire which made it vanish into thin air. When the Empire returns, so does Sombra, who attempts to retake it. He is defeated by Princess Cadance and the Crystal Ponies' use of the Crystal Heart. His dialogue consists of growls, snarling, hissing, menacing laughter, and five lines.
Gains Combat Reflexes when attacking or attacked by Tacticians. Counters attacks and attacks become Stealthy.
Density Shift - 20% chance to dodge attacks and become Phased. Immune to Bleeding.
Relentless - immune to Stun, Cower, Exhaustion, and Prevention effects
Cruelty - gains a damage boost when attacking bleeding attackers
(enemy) Reduced Potential - locks out a random ability set.
(enemy) Bleeding - takes damage each turn. Defense reduced.
(special) Hemorrhaging Attack - causes all applications of Bleeding to trigger
(enemy) Opportunist - causes either Impaired, Staggered, Cornered, Neutralized, Off-Balance, Winded, or Exhausted.
(self) Crystal Wall - absorbs a certain amount of damage.
(enemy) Crystal Cage - can only use defensive or subtle abilities. Can only be hit by subtle abilities.
(special) Ground Attack - ignores evasion and protection effects.
(special) Hemorrhaging attack - causes all applications of bleeding to trigger
(enemy) Tenderized - takes extra damage from slashing attacks
Shows one enemy his greatest fear.
(enemy) Cower - attacks have a 20% chance to fail. Fear effect.
(enemy) Intimidated - reduces attack, accuracy, and evasion.
(enemy) Broken Will - reduced damage on next attack