Tier: Dunked on Karmic Retribution
Age: Older than Papyrus
Classification: Skeleton, Best thing about Cartoon Fight Club
Powers and Abilities: Telekinesis, Superhuman Physical Stats, Magic, Karmic Retribution, Soul Manipulation, Alternate Timeline awareness, Immune to electricity, 4th wall awareness, making bad jokes and puns, flame war powers.
Speed: At least Supersonic+ (As per calculated by CFC, speedblitzed Silver, "exceedingly quickly"), Likely Immeasurable (Bill Cipher would have to put a lot of effort into catching him), can teleport
Lifting Strength: Weak.
Striking Strength: Do you think he needs Striking Strength?
Durability: One HP. One. Just one.
Stamina: Extremely high (As per calculated by Cartoon Fight Club)
Standard Equipment: His clothes.
Intelligence: Tactical and Scientific Genius, highly educated in time and space around him and knows how to break the fourth wall. Immense combat experience.
Weaknesses: 1 HP
Gaster Blasters: Sans' trademark ranged attack. He can use his telekinetic abilities to lift/aim these goat/horse like dragon hybrid skulls, firing a white deadly beam. Lasers or Plasma. I don't know.
Bone Spam: Sans spams bones
Karmic Retribution: Removes Invincibility Frames. Adds Poison Effect and allows constant damage. Deals damage via how much sins the opponent has put out. Can put out enemy upgrades and annihilate the enemy soul. Makes the opponent pay for your sins.
Soul Manipulation: Blue: Turns the opponent's SOUL blue and allows him to throw him around.
Special Attack: Sans does nothing, and also forces the opponent to do nothing.
Shrek and Donkey (with Papyrus)
Silver the Hedgehog
FNaF Team (with the rest of the Undertale Team)
Yang Xiao Long
Team Gravity Falls (with the rest of the Undertale Team)
Ultimate Showdown Fighters (it's not known how much fighters Sans defeated but we do know he killed Bendy and Robbie Rotten)
Bill Cipher (Twice)
Mario and Luigi (with Papyrus) (Twice)
Ultimate Showdown Fighters (its unknown who killed him, it could have been Goku or somebody else but we don't know how he lost and but we do know he didn't make it to the top 5 therefore losing this episode)
Undertale AU Verse