BerserkBuff, Persistent Tier: 14 Level: 1 Reservation: 30 SpiritPlace into a Skill Gem socket to gain this skill. Sockets are found in the Skills menu tab.
The following support gems are recommendations by GGG as listed in-game, and do not necessarily reflect optimal combinations or the views of the wiki.
Gem tier
Support gems
I
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II
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III
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Warm BloodedWarm BloodedSupport, Buff, Persistent Category: Warm Blooded Tier: 3 Additional Reservation: 15 SpiritSupport Requirements: +5 DexSupports PersistentBuff Skills, causing Freeze applied to you to last for a shorter duration while the Supported Skill is active.50% less Freeze duration on you while a Supported Skill is activePlace into a Skill's Support Gem socket in the Skills Panel to apply its effects to that Skill. You cannot have multiple Support Gems of the same Category socketed within one Skill.
Item acquisition
Berserk has restrictions on where or how it can drop.