A Djinn is released from his prison, this time at an American college, where he proceeds to wreak havoc to compel the summoner to make her wishes and release his brethren.
This film provides examples of the following tropes:
- Archangel Michael: Michael is summoned to fight the Djinn.
- Broad Strokes: This film and the following one never directly address the first two or each other, though they more than likely take place in the same world as the first two installments of the series, as the lore is the same. Any inconsistencies can be chalked up to the Djinn featured in 3 and 4 not being Demerest, but rather other members of the Djinn race (the narrator of the first film did say "One who wakes a Djinn will be given three wishes" and not "One who wakes the Djinn will be given three wishes").
- Healing Hands: The angel Michael possesses this ability.
- Historical Rapsheet: During a course on Greek history, the immortal Jackass Genie (wearing the skin of a college professor) describes how The Trojan War and the destruction of the entire civilization was caused by the Djinn.
- Hotter and Sexier: There's a lot of nudity. A lot.
- Immortal Breaker: Michael's sword is capable of killing Djinn, who otherwise possess Complete Immortality.
- Love Potion: The Djinn describes how he played a hand in The Trojan War ages ago when Helen of Troy wished to be seen as the World's Most Beautiful Woman. He granted her wish by making the key players in the conflict obsessed with having her, resulting in the deaths of thousands and the end of Troy.
- Market-Based Title: For some inexplicable reason (maybe in some attempt to censor the word "hell"), released as 'Wishmaster 3: Devil Stone' in the UK.
- Oh, Crap!: The Djinn notably has a brief expression of this when his summoner wishes for the aid of the Archangel Michael, one of the few beings in existence who can actually kill him off.
- "The Reason You Suck" Speech: The Djinn calls out Diana for leaving her parents to die in the car, calling her "selfish". Of course, being the Djinn, he's just doing this to push her closer to that third wish.
- Senseless Sacrifice: Dianas parents deaths in a car accident when she was younger definitely counts as this, as her father was killed trying to get his wife out of their car when it exploded. Unfortunately, however, not only did the car explode and kill him, but he had failed to get Dianas mother out of the car before it exploded. In the end, all Dianas father accomplished was dying alongside his wife and leaving their daughter orphaned.
- Summon Bigger Fish: The protagonist tries this by wishing for the aid of the Archangel Michael. It only partly works. Michael has a sword that can kill the Djinn, but only the summoner can actually kill the Djinn and can only use the sword once they become worthy. Michael spends most of the film with her running. Still, his healing powers are useful and he's actually capable of fighting the Djinn head on.
- Touché: When his summoner wishes for Michael's aid, the Djinn actually calls her a 'clever girl'.
- Weapon of X-Slaying: Michael's sword is capable of killing a Djinn, being one of the only things capable of doing so.
- We Will Meet Again: From the Djinn to an angelic warrior."You may have won the battle, but the war goes on!"
- Wishplosion: Done once a film, with a different human "mark" each time. In the third, she summons Michael the angel to fight him. He only ends up giving her the means to dispose of the Djinn, a sacred sword—she still has to do the job herself.