Garen, and his scaling into the late-game
I have heard a few complaints about how Garen is massively constrained by his ultimate and its long cooldown. This has bugged me for some time now, until I checked out his champion profile and found that it had an 80 second cooldown when fully leveled. On many champions, their ultimates' cooldown will only reach 100 seconds.
Growing curious, I noted as well that Garen's E - Judgement, scales up to +110% AD/sec when fully leveled and his Q - Decisive Strike, reaches a whopping +140% AD when fully leveled.
Even if Garen is built as a tank, his W scales well with Armor and MR, which could still possibly keep him powerful. Not to mention that his ultimate does not need AD to do damage.
These damage ratios are actually quite high compared to some bruisers, and this has led me to wonder if Garen not only preforms well in the mid-game, but perhaps he also scales well into the late-game. I do not have first-hand experience with this hypothesis, however I would like to hear feedback about whether this is true or not.