Here is the most annoying heimerdinger build and runes!

Magic pen Mark, Flat cooldown reduction Quint, health per level seal, Flat cooldown reduction Glyph.

They can destroy your turret early but you will be popping more than they can destroy because of that op Mana Cost of 20. they might waste alot of mana just to destroy 1 turret.

LUDEN ECHO MOVEMENT SPEED OP!!!!

I`m a heimerdinger main follow this build and RISE AND SHINE! >:3