Wizardmon

Wizardmon is friend of Gatomon. He is a Champion level Digimon.

Digimon Adventure
In Almost Home Free,

In The Eighth Child Revealed,

In City Under Siege,

In Wizardmon's Gift,

Digimon Adventure 02
In Ghost of a Chance,

Digimon Adventure tri.
In Future, Wizardmon briefly appears in Kari's mind and guides her to Gatomon and Meicoomon.

With the Reboot bringing back Digimon who have died in the Digital World and Real World, it is most likely that Wizardmon was among the Digimon who were brought back to life, however it is unknown how he retained his memories.

Attacks

 * Magical Game
 * Thunder Ball

Trivia

 * Wizardmon (along with Gatomon) appear as major characters in the Digimon Xros Wars manga series.