Como drakes verdadeiros são dracoformas que assumem uma forma metahumana, eu suponho que eles usem a habilidade Shift (Human) associada a metamorfos encontrados no Runner's Companion . (Em contraste, drake's são metahumanos que assumem uma dracoforma usando Shift (Drake) )
Shift (Human)
A shapeshifter can only assume a single, specific human form, chosen at character creation. This form is the same gender as the animal, and generally shares other traits as well—eyes of the same color, hair similar to the animal’s fur or plumage, distinctive scars and injuries, tattoos, etc. The human form’s apparent ethnicity is often (but not always), similar to that of humans residing in its native area and possesses unique fingerprints and retinas which are consistent from transformation to transformation. Samples of tissue taken from the human form will show animal, not human, DNA and can serve as material links (see Material Links, p. 28, Street Magic) to the character regardless of current form. Shapeshifters retain all of their powers and weaknesses in shifted human form except for their Natural Weapon. (Source: Runner's Companion pg.88, emphasis mine)
Como não consigo encontrar nenhuma regra específica dentro do texto para os personagens verdadeiros da drake ( O Clutch of Dragons , pg.137) então eu diria que a regra geral encontrada aqui se aplica. (E, em qualquer caso, por que um metamorfo comum seria o mais poderoso dos dois e manteria todos os seus poderes em metahumanos enquanto o verdadeiro drake não?)