There aren't many items that give us life drain protection.
The best protection you can have is 57,75% by using:
People tend to use Garlic Necklace (20% res) due to its price
Here is a list of all the items you can use to protect yourself against life drain, however, there are no armors, legs, helmets, shields or weapons protecting against life drain.
Source: https://tibia.fandom.com/wiki/Life_Drain
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