Well... I've not read that story, so uncertain what you mean exactly by that wording.
One to come to mind would be:
RANMA 'Astrild's Restaurant' by Skysaber - [Dld Date=11/27/2011] - [Dld Size=151kb] - [Dld File Cnt=4] - [Dld Status=Inactive]
I suppose another caused by a wish (he wished to understand whom was messing with his life, it gave him personal knowledge of Setsuna Meiu from Sailor Moon) would be:
RANMA-SM 'The Best of Times' by Ozzallos - [Dld Date=02/25/2006] - [Dld Size=585kb] - [Dld File Cnt=11] - [Dld Status=Complete]
There is also a side story by TheGrum for the Breaking Chains Saga in the World Jumping Chapters that had a more powerful Ranma summoned by Happosai...
"You reached for a more powerful Ranma, I take it? To defeat this one,
who plagues you, is that it? You fool."
"For know, ancient perversion, that I am the Dragon Lord Fey Ranma, Lord
of Fey Castle, Archmage of the Court of Farallon, Grandmaster of the Fey
and Saotome Schools of Anything Goes Martial Arts, Wielder of Dragon
Fang, Bearer of the Dragon Armor, Beloved Blood Child of the Dragon Lady
Alana," okay, those are the regulars, beefed up a bit, now let's see how
far I can take it, how long I can keep spouting titles before somebody
blows up, "Master of the Crystal Rose, Adept of the Shining Darkness and
Master of the Seven Senses, Founder of the Eleventh Dan of the Tai Chi
Chuan, Protector of the Joketsuzoku, Brother by Blood to Prince Herb of
the Musk, Ally to Saffron, Lord of the Pheonix, Twice Chosen Heir of
Grandmaster Happosai, Dragon-Father to the Dragon Lady Nabiki," oops,
that looks like Nabiki in the back, and damn is that ever a stunned
expression, "Sole Heir to the Chumino Dragon-Scale School of
Weaponsmithing, Master of the True Neko-ken," looks like that one hit
Ranma, guess he must have been put through that too, "One Soul in Three
Bodies, Master of the Tapestry of Worlds, Touched by the Hand Of Death,
Servant of the Fire That Burns Beyond All That Is, Slayer of the Demon
Neshreth, Once Born Yet Thrice Unborn, Walker between Worlds, Victor
over the Curse of the Waters of Jusenkyou," oh, boy, that one hit them
hard, can't stop on that, need some more, "Sensei of the Unseen Master,
Vanquisher of the Huntsman of Lord Ereth," man, they all just look kind
of glazed, even Happosai. Heh. "Graced with Divine Gifts by Virtue of
the Defeat of the Lords Arkus and Fey, the Swiftfang, Wolf-Friend and
Pack-Brother to the Clan of the Howling Moon," man I was really
expecting somebody to interrupt me by now...
He was interrupted finally, on the heels of that thought, by a
vengefully furious voice, "Forget not to declare the title of the
Undestined, and the Lord of Chaos!"