On page 79 of Terrinoth, the Drain upgrade while active causes enemies within short range to suffer 2 strain.
Minions and Rivals do not suffer strain. So would this then cause all minions and rivals to suffer 2 wounds? If this is the case, for minion groups, would this apply to the top of the group's wound threshold or to each minion's individual wound threshold? The way it is written, it says "enemies," so it leads me to believe that could be to each individual minion.
If this is the case, then Drain with a Duration upgrade or two would be devastating to minion groups!
From a player perspective, I hope this is true! From a GM perspective, that means I would have to pay extra close attention to how many minions I throw at them because they have suddenly become a little mushier, especially if this is paired with Unleash.