Ice King

Ice King is the villain of Adventure Time.

Fanon Wiki Ideas

 * Bowser vs Ice King

Possible Opponents

 * Asgore Dreemurr (Undertale)
 * King Dedede (Kirby)
 * Elsa (Frozen)
 * Sub-Zero (Mortal Kombat)
 * Esdeath (Akame ga Kill)
 * Weiss Schnee (RWBY)
 * Glacius (Killer Instict)