Here are 2 workflows that contain the node ADE_MultivalScaledMask:

1.

Size: 58147 bytes

URL: https://github.com/XaliataeeX/Video-to-Animation-ComfyUI/blob/e3f78441a716b70c5aa2bc54c2594106d9b25ba3/Vedio%20to%20Animation%20-%20V0.json

2.

Size: 195849 bytes

URL: https://github.com/banodoco/Steerable-Motion/blob/d747e46b215d84407578fd2a6ed26763185d00c1/demo/SuperBeasts-POM-SmoothBatchCreative-V1.3.1.json