were broken; mord was 100% pick/ban in competitive and Skarner reached close to or over 70% winrate in soloQ
was overwhelming specifically because he was reworked to fight tanks during a tank meta. It's no wonder he was so strong, but his stats still never reached what Mord and Skarner achieved. He would have averaged out naturally, given the buffs to ranged top laners that has put them back in the meta + the nerfs to his items making him much less tanky. Now he's back to not getting picked in high level play, despite being by far the healthiest juggernaut
was easily the weakest of the 4, barring the kneecappings mord and skarner got. He was at his strongest when his Villain passive was bugged and the true damage scaled with HIS HP instead of the target's, giving him disproportionately high damage. As soon as that was fixed, Garen's usefulness dropped like a rock, and he continues to be a shittier version of Darius.