First preference would be telekentic energy if that is allowed.
If not I would want it to be replaced with the liquid metal from Terminator 2 assuming that I control it.
If we are talking about things that are acutally currently possible in this plain of existence I would probably replace it with a phone
If not I would want it to be replaced with the liquid metal from Terminator 2 assuming that I control it.
If we are talking about things that are acutally currently possible in this plain of existence I would probably replace it with a phone