The split personality frame that could really benefit from some RNG pity drop mechanics - Equinox!
Release date: 2015-07-31
Passive: When Equinox collects Health Orbs or Energy Orbs, 10% of the restored amount is converted into additional Energy and Health respectively. Metamorphosis - Switch forms, temporarily gaining bonus shields and armor in Night-Form, or bonus damage and speed in Day-Form. Rest & Rage - In Night Form targets are put to sleep. In Day Form targets become more vulnerable to damage. Pacify & Provoke - In Night Form reduces damage inflicted by nearby enemies. In Day Form increases Ability Strength of nearby allies. Mend & Maim - In Night Form, allies are healed with each nearby enemy killed. In Day Form, nearby enemies are bled and then subjected to a wave of slashing force.
Acquisition: Component and Aspect blueprints can be obtained by defeating Tyl Regor on Titania, Uranus. Equinox's main blueprint can be purchased from the Market.
Equinox is kind of interesting having two frames in one.
Its passive could use a QOL update to match the recent change to equilibrium, allowing Equinox to pick up health orbs if its energy isn't full. I'd also like to be able to forma/mod the two forms independently (like Sevagoth) because of how energy hungry the night form is.
Unfortunately, Equinox is a very RNG heavy farm, so it probably wouldn't be worth the extra time and resources to do this.
It would also be nice enemies with overguard were still effected by CC/Debuffs, but with diminished effectiveness, rather than the all or nothing approach.