Savitar

Savitar is an armor-wearing speedster, affiliated with Dr. Alchemy, and calls himself the "God of speed".

Biography
After the Rival failed, Alchemy scolded him and then Savitar entered his cell at Iron Heights in the meta-human wing and attacked him. He was able to enter despite the cell being a meta-human power dampener and use his powers fully. Upon investigation, Barry, Joe and Julian discovered that Savitar killed the Rival the night he was incarcerated using his powers. Later, the rest of Team Flash are all informed of this, and Harry guessed that maybe this individual was using telekinesis or cloaking abilities.

After Team Flash and CCPD thought they had immobilized Alchemy, an earthquake erupted. Savitar blipped around everywhere, killing all the cops and freeing Alchemy's followers. Savitar was chased by the Flash, but bested him. After Wally West was trapped in a cocoon-like figure, Savitar pinned a distracted Flash to a wall. After the Flash asked who he was, Savitar introduced himself as the "god of speed."

Powers

 * Super speed: Though unknown if he derives his powers from the speed force, Savitar is unfathomably fast, so much so that he's totally invisible to the human eye while running. His speed was able to blip around Alchemy's lair and instantly kill multiple cops. Only Barry was able to see anything, yet even Barry could only see Savitar's lightning. An injured Barry was unable to match the armored foes speed, barely keeping up before quickly being outpaced and pinned down by Savitar. He was also able to get into Edward Clariss's prison cell, despite his cell containing a meta-human power dampener, and to fully use his powers once inside.
 * Electrokinesis: While moving, he emanates a white and blue lightning.
 * Geokinesis: Savitar seemingly can create earthquakes with his speed.
 * Super Strength: Savitar possesses some form of enhanced strength being able to lift the flash and pin him to the ceiling with a single hand.

Equipment

 * Armor: Savitar wears some form of armor, it's unknown at this point if it's something he's actually wearing or if he's made out of it.