Ice Smash

The Ice Smash is a Smash monster and antagonist in Kamen Rider Build.

Kamen Rider Build
The first Ice Smash was created by Blood Stalk using his Steam Blade on Takehiko, one of Kyoka Katsuragi's students. After being turned into the Ice Smash, Takehiko began rampaging but was quickly purified and returned to normal by Kamen Rider Build in his NinninComic form.

Kamen Rider Build: Birth! KumaTelevi!! VS Kamen Rider Grease!
A second Ice Smash was created when Massugu Ubukita exposed himself to a Smash essence to turn himself into the Ice Smash so he could fight Kamen Rider Build and claim his Fullbottles. He battled against Build in his NinninComic form and initially overpowered him with his cryokinetic powers until Build switched to his KumaTelevi form and weakened the Ice Smash's ice with the Kuma Halfbody. Build then finished the Ice Smash off with a Vortex Finish, reverting it back to Massugu.

Trivia

 * In the Kamen Rider Build: Birth! KumaTelevi!! VS Kamen Rider Grease! special, the Ice Smash is shown to have a Freeze Rifle after being created in addition to its cryokinetic powers.