[-] MikeDark_x suggested:
Summon something to open the door for you, more specifically, make a pact with the ancient doorknob of Cthulhu and then use said doorknob to open the door
[-] 2Create suggested:
Unplug the door and step through.
Fortunately, you are a master of ancient magic. You're a summoner like no other. Your power is so immense that even the gods do your bidding. In fact, at this point you might even be one of them yourself.
You summon Yog-Pluggoth, the god of doorknobs and electric plugs, opener of gates and creator of exits and entrances. As vast as the universe, immortal, eternal, yet his reach is infinite and his unparalleled control over doors complete and pure.
And still, despite its great power, you've subdued the divine beast. It awaits your command.
Or at least it would if you hadn't used up your daily reference quota. Also, your powers may or may not be completely imaginary.