No ARAM-specific changes; identical to the Summoner's Rift version.
Effects
Unique Passive · Ichorshield
Convert the healing received from life steal in excess of maximum health into a shield for up to 165 to 285, which lasts until destroyed.
Patch history
25.5
Bug Fix: No longer displays a long-removed Bloodthirster Hungers debuff in the status bar (which was related to Ichorshield slowly decaying 25 seconds after combat).
Unique Passive - Engorge: While above 70% maximum health, gain 10;15 to 40bonus attack damage.
Limited to 1 Bloodthirster.
13.17
Engorge health threshold increased to 70% maximum health from 50%.
13.12
Total cost increased to 3400 g from 3200 g.
Combine cost increased to 600 g from 400 g.
21 older patches
13.10
Life steal increased to 18% from 15%.
New Unique Passive - Engorge: While above 50% maximum health, gain 10;15 to 40bonus attack damage.
Removed Unique Passive - Ichorshield: Convert the healing received from life steal in excess of maximum health into a shield for up to 100 to 400, which slowly decays after not dealing or taking damage for 25 seconds.
13.6
Shield reduced to 100 to 400 from 180 to 450.
12.10
Shield reduced to 50 to 320 from 50 to 350.
Life steal reduced to 18% from 20%.
12.4
Undocumented: Passive effect renamed to Ichorshield from Blood Barrier.
11.23
New Effect: Tooltip now tracks damage blocked by Blood Barrier.
Unique Passive - Blood Barrier:Life steal from basic attacks can now overheal you, converting the excess healing into a shield that absorbs up to 50 to 350 damage and slowly decays if you haven't dealt or taken damage in the last 25 seconds.
New Unique Passive: Your life steal effects can overheal you, converting the excess healing into a shield. The shield can block from 50 to 450 damage, based on champion level, and decays if you have been out of combat for 15 seconds.
3.14
Combine cost increased to 850 g from 650 g.
Total cost increased to 3200 g from 3000 g.
Combine cost reduced to 650 g from 850 g.
Total cost reduced to 3000 g from 3200 g.
3.1
Combine cost increased to 850 g from 650 g.
Total cost increased to 3200 g from 3000 g.
V13.1b
Total cost reduced to 3200 g from 3400 g.
Combine cost reduced to 400 g from 600 g.
Life steal reduced to 15% from 18%.
Shield increased to 180 to 450 from 50 to 320.
V1.0.0.152
Combine cost reduced to 650 g from 900 g.
Base attack damage increased to 70 from 60.
Passive maximum stacks reduced to 30 from 40.
Maximum attack damage from stacks is now 30, down from 40.
Maximum life steal from stacks is now 6%, down from 8%.
V1.0.0.136
Life steal reduced to 12% from 15%.
Life steal per stack reduced to 0.2% from 0.25%.
Now only loses half stacks on death rather than all of them.
V1.0.0.108
Now shows you in its tooltip what the current stats on its passive are.
Unique Passive: Your life steal overheals you, converting the excess healing into a shield that absorbs up to 40+10*x for 6;then +20*x for 10; then +25*x damage and decays when out of combat for 25 seconds.
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+325 g = 3,400 g