Upload trait folders for each layer, mix your own hound, drop in a custom trait if you like, then save the result.
Example only. This tool lets you preview trait combinations — it doesn't change your on-chain CroHound by itself.
To make a combination official, send 30 $CRO to this address:
0x2b5d29dA43Bba142C1CA8f979062f5Bcc9033a9f
Then open a ticket in the CroHounds Discord and include:
Bottom to top. Move a layer up or down to change how it stacks — custom traits can go anywhere.