Nameless Earthern Caster skin concept

Many of the elements have been used as a basis for league champs (Janna- air, Brand and annie- fire, anivia, namo and all freljord characters- ice/water) but i feel like the earthern element has been kind of ignored even though it could be used effectively, this is character concept based around that idea, Balance numbers are not included usually for me being unsure about balance on that

Nameless Earthern Caster - Nonexistent Title

Mainly support but possibly mid or top

Passive: Fist of The Earth: All of "names" abilities knock back slightly (think trundle w shove) and stun for .2 seconds (1 second cooldown on the target), also every 5 seconds his basic attacks apply the same effect

(This may sound a little op with the stunning but actually its a very short duration stun and low knockback and all of his abilities are difficult to hit making it not as good as it sounds as well as with low mobility its his main peel)

Q: Force Kick: CD: around 3-5 seconds: Does (damage) in 180 degree cone short range in front of "name", if this collides with rock shard launches it as skillshot in targeted direction doing 1.5x normal damage and stunning for 5x the normal passive rate (1 second) , it does 50% reduced damage per enemy hit unless kills enemy, is destroyed if hits 3 targets without killing

W: Rock shard: CD: around 5-15 seconds per charge, can store 3 charges: after .5 second delay stomps smashing up a rock shard at set location knocking up (think trundles w radius with q) this spawns a rock at the set location that has 3 health and can be interacted with his other abilities, rock shards last 1 minute and "name" can have 3 out at one time, this ability can also be used on preexisting rock shards to detonate them and do aoe in a circle around them (this does apply passive)

E: Earthern armor: CD: around 15-25 seconds: applies shield on target from the next 5 damaging attacks or spells, if casted on self also slows by 0-20%, can be detonated with w

R: Earth shatter: after .5 second delay smashes ground launching 3 shockwaves in a cone in front of him(think a naut riptide except in a larger cone in front of him) this applies his passive on all 3 hits and doesnt apply the 1 second cooldown on end

He is based upon being a moderate range stunner and peelbot defending his adc as support, but could also serve as a mid or top His w has many interactions, can be used as rupturelike ranged knockup, can be used as bushtrap with detonation, can be used as just setup for poke stun with q, his e can help peel his adc more by providing damage reduction and then end up detonation knockback and stun, his r and normal q gives him great peel for self and adc. His obvious flaws lay in the fact that he can be easily dodged with mobility as his q main hit, w, and r all delayed or skillshots, as well as his low mobility, with no dashes or speedboosts and his main defense slowing him he can be easily kited or chased. hes also weaker to high attack speed champs who shred through his earthern armor quickly and his rock shards before they can be used effectively. However his ability to keep his adc very safe, combined with his decent gank help off of q w interaction, makes him an effective support. similarly his ability to keep self safe in top or mid could make him a niche pick vs high aggro teams, or bursty comps where he can entirely negate their damage with his e. Theoretically his ability with enough ap to kick earthern shards and destroy entire massive waves gives him good lane potential.

thats all i got thanks for reading comments are appreciated