Our world orders the immaterial realm, a place in which daemons and otherworldly creatures reside. These separate realms have their own rules governing their realities, such as gravity, physics, and the laws of magic. However, there are certain places in which these worlds overlap and intersect with each other. Within these places, transmutation circles can serve as a gateway between worlds, allowing one to communicate with beings on the other side. A transmutation circle is a sigil or sign for a specific magical purpose, combining a complex combination of symbols and text to perform spells and rituals. When the proper requirements have been met, a mage can activate the circle using his own mana as a power source to fuel the spell. This opens up a connection with the immaterial to create a gateway linking both worlds. This gateway operates as a small pocket dimension that exists within the material world as its own pocket of reality. Within this reality bubble, mages can summon daemons and bargain with them in daemonic pacts to gain powers. The daemon within cannot cross the border of the circle, keeping the user safe from any danger posed by the creature.
Powers given by daemons take the form of boons, powers granted by deities to mages that are meant to be beneficial in return for service to said deity. They can take the form of specific powers or access to magical spells unique to the deity. Daemons grant these boons to their followers to pursue goals on their behalf on the mortal realm, or as a gift in return for some service performed by the mortal in the hope of future cooperation. However, as the spell is only fueled by the mage's mana, it can only last for so long until the gate has closed. once the spell has ended and the connection between both realms is broken, the daemon is sent back to the immaterial. As the rules of host reality reassert itself, the power that the daemon had to influence the mortal world is lost. Any boon given to a mage should be rendered null and void due to it being incompatible with the material verse.
How can a mage continue to use their newfound abilities when the daemon is no longer able to reinforce their end of the bargain?