This works with any weapons and arts. You will need to have an Aura up in order for this to work. Using a Melee Art after a Ranged Art counts as a Ranged Combo, using a Ranged Art after a Melee Art counts as a Melee combo.
These 2 Skills and Aura Rapid Cooldown do not make arts cooldown faster. They actually remove that cooldown, reaching 100% base cooldown reduction will give all of your arts 0 second cooldowns. This only effects the base cooldown, slower arts can still take a while to reach secondary or tertiary cooldown..
Apparently buffs have a chance of increasing the buff tier when repeatedly cast, this can be used with support buffs to constantly buff you're squad or to stunlock enemies with Vortex!
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