PSA: Varus is the ultimate counter to mages in bot lane
Champions in bot lane countered by Varus:
, partially 
Why?
- Mages rely on potions to heal, support mages (and Ziggs) rely on their range so they won't get hit and won't need to heal. Varus' Q can deal very decent damage at long ranges, depleting their HP and potions REAL quickly
- Mages have naturally low base armor. This is again covered by their range, as they outrange even ADCs. However, they won't outrange Varus
- Varus has pretty good waveclear if he wants to, so he can match pushing power of Ziggs and it's much harder to push him into tower than any other ADC.
- His damage spikes early and he snowballs hard. Q with just BF takes 1/3 to 1/2 of squishy's HP
- Varus has really good all-in, he can lock down at pretty long range and has rather good burst. Additionaly, his E applies GW so he denies Heal pretty well.
- Even if he gets poked, he can easily sustain it via lifesteal (which is not an option for Ziggs) or just buy early

- His mana problems are pretty easily solved by buying
rather than
. He loses a bit of lifesteal and AD, but gains 5 mana/CS, which coupled with Meditation mastery makes him really hard to mana-starve.
, especially this coming patch.
It grants a lot more damage, a free spell shield on VERY Short CD, and Lethality. Which despite it's meh state, functions well against squishies.
1st item then go into my core build of

bot lane would be really good vs them