In Lords Mobile Energy Saver II research reduces the energy needed to attack a monster on the map. It is found in the monster tree.
There are 10 levels and once maxed you will have reduced the energy needed to attack a monster by 23%. You need to have unlocked monster hunt III in order to research this ability.
The table below has the resource cost and time to upgrade each level. It also shows the might and rewards granted. You can find out your own research time by using our research calculator.
Energy Saver II Research Requirements
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