Nga and her brother have been aged to adulthood and manifested mutant powers on two separate occasions. When aged by Mojo, they took the name “Template” and possessed symbiotic powers. After being manipulated by Spiral via her Body Shoppe, Nga called herself Replica and possessed an independent set of powers.
As Template: symbiotic psionic power allows the twins to influence their victims, mentally and physically progressing them to adulthood or regressing them into obedient children.
As Replica: tactile absorption of DNA patterns, allowing her to grow a new body for herself out of the cyber-morphic shell on her back based on the replicated genetic codes