Find the rules behind the item.

UNIQUE Sacrifice (5-25)% of Life to gain that much Energy Shield when you Cast a SpellSacrificeLifeToGainES T2 · LVL 1 → UNIQUE Sacrifice 20% of Life to gain that much Energy Shield when you Cast a SpellSacrificeLifeToGainES T1 · LVL 41 → UNIQUE Skills Cost Energy Shield instead of Mana or LifeSkillsCostEnergyShieldInsteadOfManaLife LVL 93 → UNIQUE Socketed Golem Skills gain 20% of Maximum Life as Extra Maximum Energy ShieldLocalGolemLifeAddedAsES LVL 1 → UNIQUE Spells cause you to gain Energy Shield equal to their Upfront Cost every third time you Pay itGainSpellCostAsES LVL 55 → UNIQUE The AgnosticTheAgnostic T1 · LVL 1 → UNIQUE The AgnosticTheAgnostic T1 · LVL 1 → UNIQUE Unwavering StanceUnwaveringStance T3 · LVL 1 → UNIQUE Unwavering StanceUnwaveringStance T3 · LVL 1 → UNIQUE Unwavering StanceUnwaveringStance T3 · LVL 1 → UNIQUE Unwavering StanceUnwaveringStance T3 · LVL 1 → UNIQUE Unwavering StanceUnwaveringStance T2 · LVL 64 → UNIQUE Unwavering StanceUnwaveringStance T1 · LVL 65 → UNIQUE Wicked WardWickedWard LVL 1 → UNIQUE Wind DancerWindDancer LVL 1 → UNIQUE With at least 1000 Intelligence, (1.5-2)% of Damage dealt by your Raised Zombies is Leeched to you as Energy ShieldZombiesLeechEnergyShieldToYouAt1000Intelligence LVL 1 → UNIQUE You have Iron Reflexes while at maximum Frenzy ChargesIronReflexesMaximumFrenzyCharge LVL 1 → UNIQUE You have Zealot's Oath if you haven't been hit recentlyZealotsOathIfHaventBeenHitRecently LVL 1 → UNIQUE You have no Armour or Maximum Energy ShieldNoArmourOrEnergyShield LVL 1 → UNIQUE Your Energy Shield starts at zeroEnergyShieldStartsAtZero LVL 1 → UNIQUE Your Maximum Energy Shield is Equal to 35% of Your Maximum LifeMaximumEnergyShieldIsEqualToPercentOfMaximumLife LVL 1 → UNIQUE Zealot's OathZealotsOath T2 · LVL 1 → UNIQUE Zealot's OathZealotsOath T2 · LVL 1 → UNIQUE Zealot's OathZealotsOath T1 · LVL 64 → UNIQUE [DNT] +(3-5)% to Global Defenses per MinionMinionCountAffectsGlobalDefenses LVL 1 →