As the title suggests, I think that allowing Winded to affect your melee damage would allow for more diverse builds either implemented as an armor Major Identification or a Rift Ability Tree Node.
Currently, Mage is the only class that lacks a proper melee playstyle, as, from what I can recall, Mage only has 3 Melee focused nodes: Wand Proficiency I and II, and Pyrokinesis. This leads almost every wand with Melee Identifications to be less than enticing, such as Gaia, the level 97 Mythic Wand whose Major Identification Earthen Splinter is seen as little more than a footnote compared to the Fourth Spell Cost Identification.
Gaia's current role serves as an offhand for Rift playstyles, using its Fourth Spell Cost Identification in conjunction with the Gust Ability Node, to quickly generate Winded stacks for whatever Main Hand Wand the build uses. If Winded were able to apply to Melee damage, Gaia could see use as a very strong Heavy Melee wand that can make use of its % Main Attack Damage and Raw Main Attack Damage Identifications along with Earthen Splinter, using its Fourth Spell Cost Identification to generate Winded quickly to bolster the build's starting uptime.
While Gaia is the most glaring example of a Wand that would benefit from this change, it is certainly not the only item. The Perilous Flare Major Identification, seen on the Botched Experiment Wand and the Cypress Amber Helmet, would indirectly benefit, as Melee Mage builds would likely pick up the Pyrokinesis Ability Node for the extra damage and Area of Effect. Additionally, on the same line as Gaia, the Singularity Mythic Wand also has Main Attack Damage Identifications and a Powder Special Major Identification, and thus would also benefit.
