CATHAN'S, Diablo 2 Original

Wearing two Cathan's Seal rings confers 12% life leach at 11th level, which is excellent.

Cathan's Seal ring and Sigil amulet bonuses:

That 15-20 fire damage is good for 11th level.

cf. Other notable rings.

Diablo 2 (Index) Diablo 2 Best Items.