Platform : Windows/Steam
The Aftermath spell gives a Target Vulnerable and attacks three times for 35% damage.
However, the attack damage for the Aftermath attacks seem significantly lower than 35% of regular attack damage. I have tried attacking a creature normally and then the next round using Aftermath on the same creature and I find that I do more damage with the regular attack than I do with all three Aftermath attacks. (Despite the fact that the target is “vulnerable” when receiving the aftermath attacks)
It is possible that this is intended. (Perhaps the 35% is being applied before Defense is considered?) In any case, This dramatically reduces the usefulness of the aftermath spell.