Yesterday, we saw SKT vs Jin Air on the LCK Spring.
We also saw that Bang picked Ziggs and his build path seems a little counter-intuitive to me. He bought both Arcangel Staff and Morellomonicon. We don't usually see this on mages. He also bought void staff as his 4th item which seems early to me. What are the purposes the way he built his Ziggs that way?
A misconception is that 
requires the enemy to have a LOT of MR to be a decent purchase. This is a lie. As long as it's not your first 1-2 item (depending on the match up), it will always be an amazing purchase for boosting damage. If I remember correctly, it was calculated somewhere that, as long as an enemy has at least 45~ MR or so, Void Staff will always boost your damage more than a Rabadon's Deathcap until VERY late game where Rabadon's and it's passive are giving over 225 bonus AP or something like that.
Arch gives a scaling shield, and morel is drain tank counter with heavy dmg and mana,for the staff magic pen is still more damage.
Void Staff 4th item because Singed, Lee Sin, Lissandra & Zyra had all built magic resist. Void staff 4th item is pretty common when the enemy is stacking MR.
Archangels + Morello is interesting, but makes sense. Seems they just wanted to have ziggs clear waves extremely quickly and be able to poke endlessly. With his ability to just decimate towers you can afford a little loss of early damage to scale later.
His whole kit is based on spamming abilities. I can't see how you lose a fight with him unless you go oom. The problem with Archangel's is that you basically have no solo kill potential with the tear unless the enemy makes a big mistake.
