is a M'Chiste purist.
M'Chiste is a dark-skinned pure
Atlantean, with brown hair that is partly shaved off. He wears olive colored pants and no shirt, only belts and necklaces. He also carries a spiked mace.
M'Chiste and his friends were preparing an attack on
Ronal's classmates, but were found out by King Sha'ark, who accused them of being purists. Aqualad managed to prevent a fight.
M'Chiste and other purists gathered in an underwater cave to listen to their leader
Ocean-Master unfold the rest of their plan.
Powers and abilities
Atlanteans, although Atlantean attributes: human, have through scientific and sorcerous means developed several abilities which allow them to live comfortably under the sea:
Breathe underwater: All Atlanteans are capable of surviving the aquatic atmosphere under the sea. Some accomplish this without the presence of visible gills. 
 Temperature resilience: Resistant to low temperatures and the effects of freezing,  although notably hindered by high temperatures. 
 Durability: Dense flesh, although not invulnerable.  
 Strength: Ranging from undetected levels to super strength.  
Background in other media
M'Chiste is named after, and greatly resembles, Machiste, the best friend of Warlord (Travis Morgan). He is not tied directly to the Atlantean myths of Arion; however, his inclusion seems to be based on Arion's first appearance, a backup feature in Warlord. In the comics he had replaced his right hand with a spike studded mace; in this issue, M'Chiste wields a similar mace.
Weisman, Greg (2016-12-08). Question #21670. Ask Greg. Retrieved 2016-12-08. ↑
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Weisman, Greg, Kevin Hopps (w). Jones, Christopher (a). Atkinson, Zac (col). Sienty, Dezi (let). Chadwick, Jim (ed). " Under the Surface..." Young Justice 14 (March 21, 2012), New York, NY: DC Comics
Hopps, Kevin (writer) & Oliva, Jay (director) (March 4, 2011). " Downtime". . Young Justice Season 1. Episode 8. Cartoon Network.
Dubuc, Nicole (writer) & Oliva, Jay (director) (November 4, 2011). " Failsafe". . Young Justice Season 1. Episode 16. Cartoon Network. ↑
Weisman, Greg (writer) & Oliva, Jay (director) (November 26, 2010). " Independence Day". . Young Justice Season 1. Episode 1. Cartoon Network.
Pugsley, Tom (writer) & Chang, Michael (director) (February 18, 2011). " Denial". . Young Justice Season 1. Episode 7. Cartoon Network.
Robinson, Andrew (writer) & Berkeley, Christopher (director) (September 16, 2011). " Targets". . Young Justice Season 1. Episode 10. Cartoon Network.
Hopps, Kevin (writer) & Divar, Tim (director) (Originally released on iTunes on October 14, 2012, broadcast on January 5, 2013). " Before the Dawn". . Young Justice Season 2. Episode 10. Cartoon Network. ↑
Hopps, Kevin (writer) & Chang, Michael (director) (October 14, 2011). " Revelation". . Young Justice Season 1. Episode 14. Cartoon Network.