Find the rules behind the item.

UNIQUE +(2-4) to Level of all SkillsGlobalSkillGemLevel T1 · LVL 1 → UNIQUE +(2-4) to Level of all [ElementalDamage|Elemental] SkillsGlobalElementalGemLevel T1 · LVL 1 → UNIQUE +(2-4) to Level of all [Fire] SkillsGlobalFireGemLevel T1 · LVL 1 → UNIQUE +(2-4) to Level of all [Lightning] SkillsGlobalLightningGemLevel T1 · LVL 1 → UNIQUE +(2-5)% to [Quality] of all SkillsGlobalSkillGemQuality T1 · LVL 1 → UNIQUE +(3-4) to Level of all [Spell|Spell] SkillsGlobalIncreaseSpellSkillGemLevel T2 · LVL 1 → UNIQUE +(3-5) to Level of all [Corrupted] [Spell] Skill GemsGlobalCorruptedSpellSkillLevel1 LVL 1 → UNIQUE +(3-5) to Level of all [Curse] SkillsGlobalCurseGemLevel T1 · LVL 1 → UNIQUE +(5-10)% to [Quality] of all SkillsGlobalSkillGemQuality T1 · LVL 1 → UNIQUE +(5-7) to Level of all [Cold|Cold] [Spell|Spell] SkillsGlobalIncreaseColdSpellSkillGemLevelWeapon LVL 1 → UNIQUE +(75-100)% to Cold Resistance when Socketed with a Green GemColdResistanceWhenSocketedWithGreenGem LVL 1 → UNIQUE +(75-100)% to Fire Resistance when Socketed with a Red GemFireResistanceWhenSocketedWithRedGem LVL 1 → UNIQUE +(75-100)% to Lightning Resistance when Socketed with a Blue GemLightningResistanceWhenSocketedWithBlueGem LVL 1 → UNIQUE +1 to Level of Socketed Elemental GemsLocalIncreaseSocketedElementalGem T2 · LVL 1 → UNIQUE +1 to Level of Socketed Skill GemsLocalIncreaseSocketedActiveSkillGemLevel LVL 1 → UNIQUE +1 to Level of Socketed Support GemsLocalIncreaseSocketedSupportGemLevel T2 · LVL 1 → UNIQUE +1 to Level of Socketed [Strength] GemsLocalIncreaseSocketedStrengthGemLevel LVL 1 → UNIQUE +1 to Level of all Raise Zombie Gems +1 to Level of all Raise Spectre GemsMinionGlobalSkillLevel LVL 1 → UNIQUE +1 to Level of all SkillsGlobalSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all [Chaos] SkillsGlobalChaosGemLevel LVL 1 → UNIQUE +1 to Level of all [Corrupted] Skill GemsGlobalCorruptedSkillGemLevel LVL 1 → UNIQUE +1 to Level of all [Fire] SkillsGlobalFireGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all [Lightning] SkillsGlobalLightningGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all [Minion|Minion] SkillsGlobalIncreaseMinionSpellSkillGemLevel T1 · LVL 1 → UNIQUE +10% to [Quality] of all SkillsGlobalSkillGemQuality T1 · LVL 1 → UNIQUE +2 to Level of Socketed Aura GemsLocalIncreaseSocketedAuraLevel LVL 1 → UNIQUE +2 to Level of Socketed Elemental GemsLocalIncreaseSocketedElementalGem T1 · LVL 50 → UNIQUE +2 to Level of Socketed Support GemsLocalIncreaseSocketedSupportGemLevel T2 · LVL 1 → UNIQUE +2 to Level of Socketed Support GemsLocalIncreaseSocketedSupportGemLevel T1 · LVL 94 → UNIQUE +2 to Level of Socketed Vaal GemsLocalIncreaseSocketedVaalGemLevel T1 · LVL 1 →