Hawk Moth (Miraculous Ladybug); via the Butterfly/Moth Miraculous
Gnome Wizards (Spyro: Year of the Dragon)
Sacred Stone (Tales of Symphonia)
Logia Devil Fruits (One Piece)
Mera Mera no Mi
Pika Pika no Mi
Hie Hie no Mi
Goro Goro no Mi
Gasu Gasu no Mi
DNA Surgery (Yu-Gi-Oh!)
DNA Transplant (Yu-Gi-Oh!)
Sapphire Dragon (Xiaolin Showdown)
Butterfly/Moth Miraculous (Miraculous Ladybug)
The Quantum Vapor (Static Shock)
When her elemental powers reached its peak, Patience St. Pim (Adventure Time) was able to turn everyone and everything around her into ice, as well as make them more depressed in behavior.
When her elemental powers reached its peak, Flame Princess (Adventure Time) was able to turn everyone and everything around her into fire, as well as make them more enraged and blood-hungry in behavior.
The Crystal Guardians (Adventure Time) were able to turn Finn the Human into a being of pure crystal like them.
As a god associated with fire, Hades (Hercules) was able to imbue the Caucasian Eagle with fire...
...turning him into an incredibly powerful fire-bird.
Cryonax (AD&D) can turn anything into ice, including transforming living beings into ice creatures because of his nature as the ruler of the elemental plane of ice.
The Spirit of Water (Elementals) granted Rebecca Golden water transformation powers, turning her into Fathom.
The Spirit of Earth (Elementals) transformed Tommy Czuchra into the earthen warrior Monolith.
The Waterfall of Watoomb (Marvel Comics) transformed Nicolette Giroux into the air elemental Exemplar Tempest.
With the butterfly/moth miraculous, Hawk Moth (Miraculous Ladybug) is able to bestow superpowers on others...
...having turned Ivan into the golem villain Stoneheart.
Gnome Wizard (Spyro: Year of the Dragon) accidentally turned their world, as well as the animals that dwelled there, into crystal using magic they stole from the Sorceress.
The eater of the Mera Mera no Mi (One Piece) obtains the power to create control and turn into fire.
Eating the Pika Pika no Mi (One Piece) gave Admiral Kizaru the power to create control and turn into light at will.