Talk:System Reroute/@comment-115.135.125.100-20141103075632/@comment-17703786-20141104191019

The energy efficiency limit is 75%, aka powers can only have their power cost reduced to 25% of its energy cost. So a power that costs 25 energy to cast with 80% energy efficiency will only have it reduced by 75%, thus it'll only use up 6 Energy (rounded down).

Since the Odonata as of yet cannot achieve 75% efficiency, it'll just recieve a 27.5% power efficiency at max rank of System Reroute, hence it'll only use up 19 energy (rounded up).