Ah! Clever idea, Hyro. I sense Rage-Quit potential! Aside from thematic design, why not have pillars switch to generating their opposing element?
In my opinion the sheer concept of Pendulums always screamed
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Time to me. Towers and Pillars could probably be
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Earth turf... though I had an idea about combining a cool
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Air card with Pillars/Towers.
I've had this idea for a long time now, and was hesitant to post it due to lack of art... T_T
But alas, I think this at least gets its point across. Thematically, I think Clockworker should stay as is, with pendula.