Adamantite Armor buff

[What is the actual item/mechanic/thing being targeted?]
Adamantite armor; all the pieces, including extra helmets.

[What would you like specifically changed about it?]
Adamantite armor gives melee speed when the full (melee) set is used. This could be used similarily to how Palladium armor works; except just as a decent armor set with no other benefits. The mage set also reduces mana usage, which could be mildly usable (the ranger one is useless). Using Adamantite Helmet would give 20% melee speed, which is a good bonus but not more than kits dedicated to melee speed (shinobi torso hybrids, palladium mask, etc)

Adamantite Helmet: 28 defense (buff +6)
Adamantite Mask: 24 defense (buff + 16)
Adamantite Headgear: 25 defense (buff + 21), 14% damage (buff + 2%)
Adamantite Breastplate: 25 defense (buff + 9), 10% damage for all classes (buff +2%)
Adamantite Leggings: 25 defense (buff + 13), 10% damage for all classes (buff + 10%)

[Why do you feel that this change is needed?]
Adamantite armor is not modified right now, so there isn’t any reason not to change it? ¯\(ツ)

[Anything else you would like to note]
At these settings, I don’t think Adamantite armor would outclass any other set completely, please correct me if I’m wrong.