On Drelm's downloadable character sheet there is a power feat:
Drelm's power feat wrote:
 When you would discard a blessing that has the Abadar ( or Wadjet) trait to add dice to a check, you may recharge it instead.
Exactly The same power is on Vaultkeeper role.
But on Keymaster role there is a bit different wording:
Drelm Keymaster power feat wrote:
 When you would discard a blessing that has the Abadar ( or Wadjet) trait to add 1 or more dice to a check ( or to explore your location), you may recharge it instead( and add 1 additional die).
Does it means that Drelm can recharge Abadar's blessings only when he adds more than one die? Or is it just a misprint? I don't have Mummy's Mask box yet and I can't compare it with original cards.
Maybe I'm just over analyzing things, but I'm not native English speaker and amount of rules in PACG is a bit overwhelming and I always had problems with this die/dice thing.