Here are 2 workflows that contain the node LayerMask: MaskEdgeUltraDetail:

1.

Size: 4271 bytes

URL: https://github.com/xingren23/ComfyUI-for-ComfyFlowApp/blob/c0305dc8217e8fc1c12accda14b21ba37b87f6ae/workflow/custom_nodes/ComfyUI_LayerStyle/mask_edge_ultra_detail_example.json

2.

Size: 4276 bytes

URL: https://github.com/chflame163/ComfyUI_LayerStyle/blob/b1b7a6ce985d5cdea57e755be53a418b3e96472b/workflow/mask_edge_ultra_detail_example.json