What the fuck… “Mortar”?

a static image of a Clash Royale card for the Mortar, a 4-cost defensive building, with the name "Mortar" in green text below it, flanked by various game characters including a knight, a skeleton, and a barbarian, all set against a blue patterned background. The scene remains unchanged until the final frame, where the Mortar card and the green text disappear, revealing a new central character, the Royal Champion, who raises his fists in a celebratory pose as a small skeleton flies past with a sword.