You made Overwhelm sound a lot more powerful than it actually is. It only adds 75% of the opponent's Base Damage, not their Total Damage. So stuff like their dice roll, buffs they have, Vorpal, etc increase their damage without increasing your damage.While it is, IIRC, an Offense ability, it's one of the five abilities in total that have to do with Intercept conflicts at all:
There's also a few more abilities related to Intercept that aren't on that list of five you gave.
- Primordia: This weapon can initiate Intercept conflicts against Spells, in addition to regular attacks. (Spells with any Intercept variant can initiate Intercept conflicts with other spells)
- Cleave: When you win an Intercept conflict, break the opponent's weapon. This ability by itself does NOT provide the ability to initiate an Intercept conflict.
- Sunder: The same thing as Cleave, except the opponent's weapon breaks regardless of who wins the Intercept conflict.