Brother, I see your point, but let me break down my thought process when writing this article. You tell me if I’m right or wrong, alright?
First, the point of a tier list is not to say X shell bad. In the very first note in the article I explicitly state that there are no bad shells in the game, only ones that are more broken than others.
Second, Gragu is my guy. He's my second most played shell. But let’s be objective here. He’s good, but do you think he’s better than the others at bosses?
Let’s look at the other shells purely in terms of boss fight potential, alright?
Genessa = broken
Tiel = broken
Smert = broken
Eredrim = broken
Sariel = A Tier, but requires a ton of understanding to work. Teetering on B.
Proxima = Top of B Tier, but the fact that she’s the only shell that can farm gold means you have to give her A.
Now, let’s look at how Gragu functions in boss fights. The extra 140% damage is very good, but it’s not broken. Other Shells have similar ways of evening the battlefield, if not better.
The 8 heart sustain is good, but it needs you to farm it, either from the boss himself or from the mobs before the boss fight. That’s extra work the other shells don’t have to do.
Each instance of self heal is 1/3 of a proper Mether’s Pulse, and when bosses can kill you in one chain combo, you tell me what’s better? 3 Hearts that take 10 seconds or 1 single Mether’s Pulse that takes 2?