concentration, 1 minute/mana
As an action, your poison slows the processing and reaction time of up to two creatures that you can touch or see within 10 meters and within 5 meters of each other. Each target must succeed on a Fortitude saving throw or be slowed 1 for the duration.
A creature can repeat the saving throw at the end of each of its turns, ending the effect on itself on a success.
Augment
You can augment this spell with the following options, expending mana for each option.
You can target two additional creatures for each additional mana expended. The creatures must be within 5 meters of each other when you target them.
You can increase the slowed level by 1 for each additional mana expended.