Variable ability power
Player can use variable amount of power, force, time, etc. on performing a magic spell, ability or similar. Such as by selecting the power level each time the ability is used.
Alternate name: Variable magic power
The first video game about Variable ability power was released in 1993.
* Power level - player designates the power at which to cast the spell at
* Mana feed - player designates how much more mana (magic points) to use on the spell besides the minimum necessary
Depending on the game, the power level or mana feed may be remembered, either in some spell shortcut or in the spell itself.