my thoughts on what should be changed on garen

hes trash--he cant gapclose especially with his reduced movement speed and lack of any sort of mobility, and he is essentially a tunnel vision champion

i play him alot, though i havent played him in a bit, but i have over 380 k mastery points on him so my experience on him is above average :) i believe that his r cd should get some cdr refunded upon killing a enemy champion, (maybe increasing the base cdr to balance it out) and maybe deal an aoe of some sort, damage, maybe reduces resistances, or some kind of cc, to make it more rewarding to use it in a teamfight. giving it some sort of aoe will make it more team helping kind of ability to use in higher elo rather than just tunnel visioning only the adc or villian for 300 g, compared to darius who can just penta dunk the enemy team for a free win. the w changes dont look like they will help alot, but it is nice, and if it had a scaling with resistances like galio, that could make playing tank garen more rewarding then just getting 3 damage items and then 2 tank items. however, he is a low mobility champ, so easily kited. when he intiates a teamfight, garen's survivability is with his w. now thats it not 6 seconds at max rank anymore, i feel like it will be extremely overwhelming once it ends, he presses w, ok its a bit stronger, and has tenacity for 0.75 secs but then you get kited out and bam. youre now basically naked, and all you have is your tankiness from just items and base stats. other juggernauts have grey shields and heals, but garen doesnt. i feel like the passive changes wont help him in higher elo, but will just give him more mid game snowballing power, perfect for making him stronger in lower elo--the opposite of what i assume are the goal of these changes.

tldr;

r-when it lands it creates an aoe with a debuff (slow/resistance removal), or maybe gives some kind of buff to allies?? w-scaling with mr/armor?