Preface I had mentioned doing something like this before and had some positive reception, if not allowed or any recommendations please feel free to let me know.
Excalibur epitomizes the warrior spirit. His master swordsmanship deals high damage. He is the embodiment of martial excellence.
1ST ABILITY Slash Dash-Slice through enemies, becoming invincible throughout
2ND ABILITY Radial Blind-Send out a blinding wave, briefly stunning enemies in an area
3RD ABILITY Radial Javelin-Throw out projectiles around you, causing damage to enemies
4TH ABILITY Exalted Blade-Summon a powerful sword, equipped with mods of your choosing
Subsumed ability-Radial Blind
Progenitor Element-Electricity
Released in Vanilla 10-25-2012
One of the three starting frames offered, he also comes in the form Excalibur Umbra earned in the main quest line and the exclusive Excalibur Prime-This prime is only for the original founders who supported Warframe in its inception.
The parts if not selected at the start come from Lech Kril on Mars, and he can be bought fully assembled from Teshin through Conclave once you have achieved Typhoon rank.
I think Excal sits at a perfect power level for a “starter” frame. Not so powerful as to discourage you from seeking other frames but perfectly capable of getting you through the entire star chart with his balanced all arounder kit. And you can even push him to Steel Path levels with some augments and subsumes if you like him a lot. He’s also aged surprisingly well for a frame that was here since the beginning, he’s got some reworks but his core abilities remained mostly the same (except super jump, but good riddance to that one).