BlzSetSpecialEffectTimeScale

Parameters
whichEffect effect
timeScale real
comment

Changes(set) the TimeScale (animation speed) of the passed special effect.

TimeScale is a real, which means that it can be both negative and positive numbers with decimals, if you see the animation speed at 100.0 it will go at 100% speed, if you however set it to -100.0 it will go backwards and reset towards the beginning, however it can’t start at a negative value, if you want to reset the animation, you must pass it a negative value mid animation, else it will stand still.

patch

1.29.2.9231

Source
common.j (suggest an edit or discuss on Github)
return type
nothing
Source code
native BlzSetSpecialEffectTimeScale                takes effect whichEffect, real timeScale returns nothing