Just found out quote "### WARLOCK:
- Pact Spell Adjustments: Ice Storm, Sound Lance, Withering Ray, and Darkbolt now have a replenishment timer of 3 minutes."
A three minute timer, in combat might as well be never replenished. I don't see Darkbolt increasing every three minutes after, but if you use the spell, then again before three minutes, you never regain it until you rest. Maybe if it was a much lower timer, but three minutes?