Do reflection units have the energy and power cost of the unit they are copying?

Ruling: Yes, a reflection unit (or any unit that becomes a copy of another) does adopt the Energy or Power cost of the unit it is copying, because Cost is an inherent trait that is copied when a game object becomes a copy of another.

Nuances:

• Tokens normally do not have costs and their cost is treated as 0 for all purposes
• However, when a token becomes a copy of a card, it gains all the copied card's traits, including its cost
• Cost is explicitly listed as a copyable inherent trait alongside Name, Super Type, Type, Tags, Controller, and Domain