Skarner buff idea
Skarner is a pretty fun champ and he has the potential to be pretty strong. To me his major issue is that he only has a passive on half the map (even less because teams dont teamfight near buffs that much).
Why not make it so that either:
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His spires extend to lanes so he has a passive when ganking
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Reduce the numbers on the buff that his passive gives and make it increase per spire his team has captured. And then make it apply to him globally. That way if he has 0-2 spires he is weaker globally than he would be now if he was standing on a spire. If he has 3-4 spires he is about even. and if he has 5 or 6 he is stronger than live. This way he has a useable passive all game and he will be rewarded for capturing spires and punished for not. That way riot can keep their little mini game mechanic they like to use so much.