Nectar of Lethe (Lamia's Veil)

The Nectar of Lethe (sometimes called Lamia's Veil) is a honey-bottle trinket that wraps you in a brief shroud against the world's bite.

Charge it by dragging Ancient Energy onto it, then right-click to gain a 30-second buff that halves the PvE damage you take (your PvP damage is untouched). There's no world restriction on using it — the limit lives in the effect, which only ever applies to monster and boss damage. The cooldown matches the buff's length, so you can keep the veil up back-to-back as long as you can pay for it.

Each use costs a flat 50,000 Ancient Energy, the same at every mining level — it no longer scales from 25,000 at Coal up to 500,000 at Netherite.

Where to get it: a rare drop from Lamia, one of the server's bosses.