magic penetration
at max stacks deals additional magic damage
damaging enemy with ultimate spwans area beneath them dealing magic damage
enemies bellow 35% are striked critically
dealing more than 35% of enemies health within 3 secs grants a lightning strike on enemy
at max stacks gain life steal. building this item with some resistence and items like Spirit Visage that stimulate the healing is very deadly combo
burns enemies, for every second in fight gain bonus magic damage up to 6%
hitting enemy reveals them and hitting them again deals additional damage
increases ability power. basically you can use it for anyone if you wanna deal lots of magic damage
burns enemies, for every enemy affected increases ability power
mejai’s soulstealer gain bonus ability power and movement speed
after using ability your next attack gains 50% bonus attack speed and deals bonus magic damage on-hit based on 75% base ad

slows enemies
damaging enemies grants more movement speed
damaging champions reduces healing ability
active dashes you forward
enemy dying within 3 secs grants you a heal area around you
quick restoration of health outside fight, gives movement speed
bonus health equal to 15% mana

increases healing and shielding, also health regeneration so its very good for champs like Dr. Mundo, Volibear or Warwick
out of fight for 15 secs gain magical shield. this item is very good e.g. for galio as it has really good health stats and the magic shield empowers his passive shield as well. It is also very good m ritem for any other champion of course
taking magic damage grants stacks, at maximum stacks receive additional mr and movement speed
deals magic damage in area around you, killing enemy deals magic damage around that area
banshee’s veil grants spell shield
reduces enemies mr + gives you additional mr for every cursed enemy

reduces attack speed of enemies, reduces physical damage. its very similar and cheaper option from Randuin's Omen, the only difference is Frozen Heart is used against aa champs when Randuin's Omen against critical champs like MF or Caitlyn
reduces critical damage, active slows enemies around. More expensive item than Frozen Heart but if you have enemy team comp that deals hard critical damage its very useful
deals magic damage in area around you. very solid option against heavy ad team comp
reduces healing, deals magic damage to attacking enemies. as an item with both armor and health stats its very good option for champs that scale either with HP or resistance
active freezes you for 2.5 secs. it is very helpful item especially when youre facing fed enemy team with hard damage
reduces slows, built up movement speed transforms into physical damage, slowing on you is reduced by 25%
its good item if you need your priority fed teammate kept alive because it transforms 12% of damage onto you while you will be healing and both of you contributing

gives you shield
at maximum stacks increases magic and physical damage resists

reduces attack speed of enemies, reduces physical damage. its very similar and cheaper option from Randuin's Omen, the only difference is Frozen Heart is used against aa champs when Randuin's Omen against critical champs like MF or Caitlyn
reduces slows, built up movement speed transforms into physical damage, slowing on you is reduced by 25%
its good item if you need your priority fed teammate kept alive because it transforms 12% of damage onto you while you will be healing and both of you contributing
reduces enemies mr + gives you additional mr for every cursed enemy
gives you shield

vs lots of cc, reduces magic damage
reduces attack damage
magic penetration