Find the rules behind the item.

UNIQUE +(-1-1) to Level of all Spell Skill GemsGlobalIncreaseSpellSkillGemLevel T2 · LVL 1 → UNIQUE +(0.5-1)% to Spell Critical Strike ChanceAdditionalCriticalStrikeChanceWithSpells LVL 65 → UNIQUE +(1-1.5)% to Spell Critical Strike Chance if 4 Shaper Items are EquippedAdditionalCriticalStrikeChanceWithSpells4ShaperItems LVL 1 → UNIQUE +(10-30)% to Critical Strike Multiplier for Spells if you haven't Killed RecentlySpellCriticalStrikeMultiplierIfNotKilledRecently T1 · LVL 1 → UNIQUE +(2-3) to Level of all Cold Spell Skill GemsGlobalIncreaseColdSpellSkillGemLevel T1 · LVL 1 → UNIQUE +(2-3)% to Critical Strike Multiplier for Spells while Dual WieldingSpellCriticalMultiplierWithDualWield T1 · LVL 1 → UNIQUE +(2-3)% to Critical Strike Multiplier for Spells while holding a ShieldSpellCriticalMultiplierWithShield T1 · LVL 1 → UNIQUE +(2-3)% to Critical Strike Multiplier for Spells while wielding a StaffSpellCriticalMultiplierWithStaff T1 · LVL 1 → UNIQUE +(2-4) to Level of all Cold Spell Skill GemsGlobalIncreaseColdSpellSkillGemLevel T1 · LVL 1 → UNIQUE +(3-5) to Level of all Spell Skill GemsGlobalIncreaseSpellSkillGemLevel T1 · LVL 85 → UNIQUE +(4-5)% to Critical Strike Multiplier for Spells while Dual WieldingSpellCriticalMultiplierWithDualWield T1 · LVL 1 → UNIQUE +(4-5)% to Critical Strike Multiplier for Spells while holding a ShieldSpellCriticalMultiplierWithShield T1 · LVL 1 → UNIQUE +(4-5)% to Critical Strike Multiplier for Spells while wielding a StaffSpellCriticalMultiplierWithStaff T1 · LVL 1 → UNIQUE +(60-100)% to Critical Strike Multiplier for Spells if you haven't Killed RecentlySpellCriticalStrikeMultiplierIfNotKilledRecently T1 · LVL 1 → UNIQUE +1 to Level of Socketed Spell GemsLocalIncreaseSocketedSpellGemLevel T1 · LVL 1 → UNIQUE +1 to Level of Socketed Spell GemsLocalIncreaseSocketedSpellGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Chaos Spell Skill GemsGlobalIncreaseChaosSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Chaos Spell Skill GemsGlobalIncreaseChaosSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Cold Spell Skill GemsGlobalIncreaseColdSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Fire Spell Skill GemsGlobalIncreaseFireSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Fire Spell Skill GemsGlobalIncreaseFireSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Lightning Spell Skill GemsGlobalIncreaseLightningSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Physical Spell Skill GemsGlobalIncreasePhysicalSpellSkillGemLevel T1 · LVL 1 → UNIQUE +1 to Level of all Spell Skill GemsGlobalIncreaseSpellSkillGemLevel T2 · LVL 1 → UNIQUE +2 to Level of Socketed Curse GemsIncreaseSocketedCurseGemLevel T1 · LVL 1 → UNIQUE +2 to Level of Socketed Curse GemsIncreaseSocketedCurseGemLevel T1 · LVL 1 → UNIQUE +2 to Level of Socketed Spell GemsLocalIncreaseSocketedSpellGemLevel T1 · LVL 1 → UNIQUE +2 to Level of all Chaos Spell Skill GemsGlobalIncreaseChaosSpellSkillGemLevel T1 · LVL 1 → UNIQUE +2 to Level of all Fire Spell Skill GemsGlobalIncreaseFireSpellSkillGemLevel T1 · LVL 1 → UNIQUE +2 to Level of all Lightning Spell Skill GemsGlobalIncreaseLightningSpellSkillGemLevel T1 · LVL 1 →