New Armor + Magic Pen Item Suggestion: Zhonya's Battlemage Armor

Recipe: + + 500 gold (3200 gold total) Stats: +45 AP, +40 armor, +200 health Unique Passive - Eyes of Pain: +15 magic penetration Unique Passive - Seeker's Hunger: Killing an enemy champion grants 2 bonus Armor and 1 bonus Magic Penetration. This bonus stacks up to 5 times.

Furthermore, 's unique passive would be named Seeker's Hunger as to prevent the two from stacking.

Despite the fact that magic resist is less common and does not scale with level (while armor does), magic penetration and armor items for mages are in short supply these days. So I thought, why not put both of them in one item? Of course, having this item work well with and would definitely spell overpowered for certain champions, so the unique passives this item shares with them and/or their components will make it inefficient to get those items alongside with this one.

Zhonya's Battlemage Armor would be meant as an early (thus the relatively lightweight buildpath) counter to squishy AD assassins, moreso than (except against Zed) in most cases. ZBA would give both the armor to counter lethality assassins and the magic penetration to get through their MR (with some health from the build path), at the cost of losing out a good amount of early AP.

This item would probably be a great early anti-AD buy for champions like that have higher base damages and would be fine without some of the extra AP they'd lose out on and would enjoy the magic penetration they'd gain.

Thoughts?