Season 13: Fire and Water

Antagonist is The Ice Skeleton and the Blizzard Skeletons are the villains

Episodes
140. It's Not the End

141. The Dungeons of Freezing

142. Boil the Ice

143. The Pyramid Fridge

144. The Survival

145. The Ice Skeletons

146. The World's Hardest Ice

147. The Cell of Destruction

148. Fire Away

Protagonist
Kai and Zane.