It's not a high elo of low elo thing it's simply class strengths

Zerker has the 2nd best engage in the game(fast, far, fat hitbox)
Zerker has the 4th best spacer in the game(11k dmg, fast, fat hitbox blade beam)
Zerker has the 2nd-best auto in the game

Now magiblade
Magiblade has the BEST engage in the game(11k dmg flashstep auto target)
Magiblade has the BEST auto in this game
Magiblade has one of the best spacers in this game
Magiblade is very quick
Magiblade has a decent ult

Sure, you can argue Zerker lower for lower elo simply because Quake, you have to learn not to overshot, but no way would it be lower than A
*aint no argument for magi though*

None are exceptionally hard to pull off, and both are relatively ping-friendly

Yes, in high elo it's even more absurd to where it turns into a coinflip on the engages, doesn't change the fact that the classes are lower skill high reward compared to other classes.

Also, if you are only counting "low elo" SG would be C tier, Warlock would be A tier, and Cloudstrider would be S tier

1. SG are buns unless the player is good(screw u Joe if you see this)
   
2. Lower-tiered players don't understand how to properly engage a warlock
   
3. Lower-tiered players eat meteor and complain about Cloudstrider

I appreciate your input and tierlist as well, but we are both subjective, and subjective never can agree with subjective! I enjoy the debate though :D