Garen and his old problems vs. now

They are exactly the same. You can thank the revival of his W passive and the upgrading passive he has now. He doesn't ever fall off not does he have a weak point. His W passive MR and Armor is toxic when combined with his passive (a huge reason why it was removed even back before his passive scaled). And to top everything off he has a silence on a move that is mobility, damage enhance, AA reset, slow removal. Now he also has a really loaded spin to win (not that it's the great but is pretty damn overloaded).

They need to shift garen away from so much stupid utility that he's cancer when ahead or useless when behind.

1. Silence needs to be removed and replaced with a 40% slow (50% on the villain). Slows are more consistent in general and not as toxic when applied to the target. AAs while on CD to champs decrease the CD by 1s each.
2. Spin to win needs to deal normal damage to single targets. No bonus damage from being alone. That isn't his niche. Spin to win should do increased damage to groups of champs not to single targets for the same amount it does single target currently.
3. His free armor and MR should be replaced with scaling tenacity up to 15% (.1875% per farm or 80 for max). His W should give him 5% MS for each friendly champ near him within a 750 unit radius on activation for 3s and will slow enemies nearby (500 units) by 5% for each allied champ hit initially at the end.
4. His ult should no longer convert fully to true damage (maybe 25-50%) and should do physical damage.
5. His passive turns off if he is in combat with a champion (meaning he no longer regens while on the offensive). Minions should stop his passive from turning back on (but doesn't turn it off) until level 9.
6. New passive interaction with Villian. You shall not pass: Garen will leap over the target on Q hit and impose himself causing him to be able to body block the target (even through ghost effects)

This is all an effort to make Garen less toxic, but also allowed to actually be decent without being under the microscope whenever he is.