Envy -- this was Axiom's foray into thinner style putters. It was first released in Soft Neutron plastic. It is a stable to OS disc that holds many different angles. Along with the Ion it really is the gem among MVPs putters. For me, it feels like similar to a Judge or Pure, albeit with a very micro-bead. It flies similar to the Shield with a touch less glide but with more forward penetration. The Envy shines off the tee or on full powered upshots. It is a fantastic all around disc. It is also a great putting disc. It does take a bit more getting use to to putt with. With less glide than the Ion class, it really takes a bit more of an aggressive putting style. It you are more of a lofty, arcing putter, you might be frustrated with this disc in the circle. Check out videos of Matt Dollar this last year, especially from the MVP Open at Maple Hill, and you can see this disc in action. It also comes in a full gamut of plastics. I really like Soft Electron, the new Eclipse (a tick more OS than other plastics), and Soft Neutron (holds its stability for a long time).