The bird queen, air elemental, most underappreciated frame - Zephyr!
Release date: 2014-02-05
Passive: Striking from the skies above, Zephyr is significantly lighter in comparison to other Warframes, dramatically altering her airborne physics. While airborne, Zephyr’s equipped weapons gain a 150% Critical Chance bonus.
Tail Wind - From the ground, charge and release to launch Zephyr into an airborne hover. From the air, tap to dash forward, or aim down to dive bomb enemies below.
Airburst - Launch a burst of massively dense air. Hold to send enemies flying, tap to pull them toward the burst. Damage increases per enemy hit.
Turbulence - Creates a wind shield around Zephyr, redirecting all incoming projectiles.
Tornado - Create deadly tornadoes that seek out and engulf enemies. Tornadoes deal the elemental damage type they absorb the most. Shoot enemies engulfed in Tornadoes to do additional damage.
Acquisition: Zephyr’s blueprints can be researched from the Tenno Lab in the dojo.
I heard a similar pitch from someone else after I came back to Warframe around the launch of Duviri. Initially I wasn't impressed, but the incremental improvements from Archon shards and properly built Electric/Gas weapons made a pretty large difference to me (even better now after status reworks). She's definitely a regular in my Circuit/EDA rotation now, and an easy frame to recommend for new players.
Also, as someone that still plays Loki and Chroma, there are dozens of us! Ok, maybe just one dozen, but still.