Magic resist down.
Now that tanks have more magic resist options available, Cowl doesn’t need to be quite so potent on its own.
MAGIC RESIST :  ⇒ 25
Costs more. More health, less magic resist.
After reshaping and reinforcing the equipment mages have at their disposal, it stands to reason that we’d bolster the options to defend against them as well. Maw and Abyssal Scepter are solid purchases for the damage-minded, but the marquee tank options of the magic resist family need some work.
All of that begins with Spectre’s Cowl. Funnily enough, Cowl actually has the opposite problem of its upgrades a it’s too efficient for its cost, to the point that tanks are often happy leaving it un-upgraded far into the game. We want them to feel good about sitting on Cowl in lane, but tinkering with its efficiency should pressure tanks into spending more gold to get their desired magical defenses.
TOTAL COST : [1100 gold] ⇒ 1200 gold
HEALTH :  ⇒ 250
MAGIC RESIST :  ⇒ 30
TOTAL cost : [1200 gold] ⇒ 1100 gold
BUILD path : Ruby Crystal + Null-Magic Mantle + 250 gold
MAGIC resist :  ⇒ 35
Magic Resist increased.
- "Just giving fighters and tanks a little help when dealing with mages in lane. "
- HEALTH REGENERATION :
100% base health regen ⇒ 150% base health regen
- RECIPE :
Negatron Cloak + Ruby Crystal + 275 gold ⇒ Null-Magic Mantle + Ruby Crystal + 300 gold
- TOTAL COST :
1400 gold ⇒ 1200 gold
- MAGIC RESISTANCE :
45 ⇒ 35
- New Item: Spectre's Cowl
- Recipe: Ruby Crystal + Negatron Cloak + 205 Gold = 1400 total Gold
- +200 Health
- +45 Magic Resist
- UNIQUE Passive: Grants +15 Health Regen per 5 seconds for up to 10 seconds after taking damage from an enemy champion