The Original Juggernaut

This champion has been around for ages, but nobody ever thinks of them when they think of the mistake that was Juggernauts. Even though they have all the staples of a Juggernaut: They're "immobile" (except with a strong MS buff in their kit), have innate Tenacity, deal immense sustained damage (which includes %max hp) even with no damage increasing items, is incredibly difficult to kite and peel despite those being their supposed weaknesses due to being able to apply a constant slow, buff their own MS, and shrug off any damage or cc thrown at them. And all this with ability costs and cooldowns so low they may as well not be there.

And yet nobody ever plays