Finally! Thank you, ZOS!
Adding Major Endurance and reducing the cost of Whirling Blades(Morph) was a long-awaited change for me. However, I do feel the skill still needs a bit of tweaking. I would like to suggest increasing the range of Whirling Blades(Morph) to around 7 meters. The standard AoE range for similar abilities seems to fall between 6-8 meters, unlike Whirlwind and Whirling Blades(Morph) at 5 meters. Increasing the range of Whirling Blades to 7 meters, would insure that it remains competitive in both the PvE and PvP environment, as well as offering a balanced option between its counterpart, Steel Tornado.
Thanks.