Ras

Buff Dispel

Surprisingly, Ras' best skill is probably his humble S1. Dispelling enemy buffs is vital in Epic Seven, and there aren't a whole lot of heroes who can do it. If you are unlucky in the Covenant Summon, Ras might be your only buff dispeller for a long time.

Damage Scales off Health

Ras has very low Atk, but fortunately, he compensates for this by adding a percentage of his max HP to his attacks as damage. The higher his HP, the higher his damage, which allows him to build for survivability and still dish out some respectable damage.

Guaranteed (and Controllable) Dual Attack

Ras' S2, Command Strike, automatically triggers a Dual Attack with the ally who has the highest Atk. This means that Ras grants a free use of your strongest ally's S1 whenever he uses his S2. By manipulating your team's Atk, you can choose which character gets pulled in for the Dual Attack. Pull in Helga for more chances of Defense Break, Falconer Kluri to accelerate her next turn, Carrot to detonate some Burns, Mistychain for free healing... the possibilities are endless!

3★ Hero

Being a 3★ hero means that Ras uses Stigma instead of Molagora for his Skill Enhancements. Since Stigma is a much more common resource than Molagora, this lets new players save their Molagora for 4★ and 5★ heroes they may pull further down the line instead. (Ras doesn't even need Skill Enhancement, since his enhancements just increase the damage of his attacks and damage is not what Ras is used for, but it's still helpful.)

Guaranteed Free Hero

Being a free hero in Epic Seven makes a big difference. Some players may not pull another Knight, even a 3★ one, until many hours into the game. The fact that Ras is guaranteed to be there to take the front position in a party and absorb damage for the rest of the team is helpful.

Very Slow

Ras' Spd is even worse than his Atk, and unlike Atk, Ras can't make up for his bad Spd by building another stat. Low Spd is a death knell for most Epic Seven characters, and Ras is no different.

Bad at Tanking

Ras has no ability to draw attacks from his allies other than standing in the front row (where most enemy aggro is directed) or equipping the Knight Artifact Aurius. He can't Provoke, he has no AOE defense buffs, he has no passives that mitigate damage, and he does nothing to reduce enemy attack power.

Needs Strong Allies

Even when geared up with lots of extra HP, Ras' damage output is not very high. He relies on pulling in his allies with his S2's Dual Attacks to make up for his low DPS, which means that he's only as good as the team he's built around him.

Outclassed by Other Knights

Because he's slow, bad at tanking, and relies on having stronger allies present to help him fight, Ras is easily outclassed by most other Knights in the game. Other support-oriented Knights like Falconer Kluri and Rose bring more or stronger utility to the table, and Knights who can actually direct damage with Provoke (Cecilia, Lilias) or mitigate damage with defense buffs or Invincibility (Pyllis, Crimson Armin) are going to be better options in any situation that doesn't directly call for Ras' buff-stripping potential.