This new Vertigo Sound VSM-3 native plugin from Plugin Alliance will change your life.... I use the hardware version on my stereo bus on practically every mix.
This one took me by surprise. I was amazed at the different harmonic colors this plugin is capable of creating. Works great on processing drums or individual instruments. It really has a way of sparkling up the harmonics on a synth track or synthetic bassline.
Brilliant for adding character and bringing out those 2nd and 3rd harmonics. Especially useful on analog synth parts.