Rework passives of zilean and heimerdinger

{quoted}

Did you know that Heimerdinger has the highest HP5 in the game at every level? The more you know.

#ReworkDongerPassiveNow

and one of the lowest health

{quoted}

Did you know that Heimerdinger has the highest HP5 in the game at every level? The more you know.

#ReworkDongerPassiveNow

Yes, but it doesn't matter if you're squishier than a bouncy ball.

{quoted}

Did you know that Heimerdinger has the highest HP5 in the game at every level? The more you know.

#ReworkDongerPassiveNow

So let's see here. I play Riven who has (one of) the lowest HP5 in the game. You play Sion. You try to 1v1 me. I put up my AD scaling sheild and animation cancel burst you to death because I bought Last Whisper and Yomumu's, despite your 5k health.

I play the donger who has the highest HP5 in the game. You play Sion. You try to 1v1 me. I stun you, fire my rockets, let my turrets take you down, Zhonya's, but because you're playing Sion and have built a ton of MR because you're Sion, you survive with 500 health and kill me because I couldn't regen fast enough.

It doesn't matter if you regen 100 health per second if you're insanely squishy and have no defensive abilities. Someone will be able to burst you down, or have enough DPS to do enough sustained damage.