Typically I'll modulate the phase of the sine along with shoving it through one or more distortions/waveshapers. I probably used the Terci Ruina, but I honestly don't remember. As for the filter, I think (but again, don't actually remember; I need to take better notes) it was the #WMDevices #C4RBN but it could have been the Wasp -- those are where'd I'd reach for acid, generally speaking.