Genshin Impact Boss Materials Guide: World Bosses, Weekly Bosses & Optimal Resin Routes

New players mix these up because both get called "bosses", but Genshin splits them cleanly by what the material is for:

• World Bosses (Elite Enemies — Regisvine, Hypostasis, Primo Geovishap, etc.): drop elemental gems (used for ascension, i.e. level-cap breakthroughs) plus one boss-specific item, also used for ascension. See the full level-by-level breakdown on our ascension materials page.
• Weekly Bosses (Trounce Domains — Dvalin, Andrius, Azhdaha, Childe, etc.): drop high-level talent materials (Talent Level 7-10 only) — nothing to do with ascension.

Mixing these two up is the single most common reason players farm the wrong thing for a whole week while their character still can't level up — check exactly what your character needs first on our character list.

World Bosses are scattered across every region, each tied to one element and dropping that exact gem line: Prithiva Topaz (Geo), Vajrada Amethyst (Electro), Vayuda Turquoise (Anemo), Shivada Jade (Cryo), Agnidus Agate (Pyro), Varunada Lazurite (Hydro), Nagadus Emerald (Dendro). Long-standing familiar faces: Cryo/Pyro Regisvine, Anemo/Electro/Geo Hypostasis, Primo Geovishap, Maguu Kenki, Perpetual Mechanical Array, Golden Wolflord, Jadeplume Terrorshroom, Rifthound Skulker — every new region adds a few more following the same formula.

Each gem has 4 tiers: Sliver → Fragment → Chunk → Gemstone, and higher tiers need fewer pieces per ascension but drop less often — scaling with Adventure Rank the same way domain artifacts do, so it's best to farm seriously from roughly AR45 onward for a steady high-tier drop rate; below that, just ascend with lower tiers and catch up later. Cross-check the full gem count per level bracket on our ascension materials page.

Weekly Bosses are the big story/quest-gated encounters — familiar names like Stormterror (Dvalin) in Mondstadt, Andrius (Wolf of the North) on Dragonspine, Azhdaha and Childe in Liyue, with more added in every following region. Thanks to the Trounce Blessing mechanic, which cuts the cost by 50%, each of your first 3 reward clears of the week only costs 30 Original Resin — but here's the trap almost everyone falls into once: that 3-clear cap is shared across ALL weekly bosses combined on your account, not 3 per individual boss. Fight Dvalin twice and Childe once, and you've already used your 3 discounted slots — fighting any other weekly boss that week loses the Blessing discount, so it costs the full 60 Resin again but drops NO materials (just Mora/EXP).

This cap resets at 4am Monday, server time for whichever server you play on (not your local timezone if you're on a different region) — the same reset point as weekly quests and Battle Pass tasks. Plan your 3 slots around whichever 3 characters need talent materials most urgently that week instead of dumping them all into one boss.

Original Resin regenerates 1 point every 8 minutes, capping at 200 (this 200 cap has applied to EVERY player since version 4.7; before that the cap was 160 — the premium Battle Pass doesn't raise the Resin cap at all, it just lets you buy extra Fragile Resin) — and the 3 material-related content types cost very different amounts:

• 20 Resin: Domain of Blessing (artifacts), Domain of Mastery (talent books), and Domain of Forgery (weapon ascension materials) — all on a rotating daily schedule.
• 40 Resin: World Bosses (Elite Enemies) — drop elemental gems plus that boss's own ascension item.
• 30 Resin: Weekly Bosses (Trounce Domains), discounted 50% by the Trounce Blessing — drop high-tier talent materials, but only for your first 3 clears that week as covered above; from the 4th clear the price snaps back to the full 60 Resin with no materials at all.

Since the three tiers cost so differently, an efficient session should spend the 3 discounted 30-Resin weekly boss slots first (hard-capped at 3/week — don't push to a 4th clear, it doubles the cost for nothing), then split the rest between 40-Resin world bosses and 20-Resin domains — Resin left sitting overnight just wastes regeneration time.

Both world and weekly bosses can be fought in co-op (up to 4 players per world). The key thing to remember: every participant pays their own Resin to claim their own materials — there's no free ride for joining someone else's fight — but the whole team's damage stacks together, so even a weak-build or low-AR character can drop a hard boss (Azhdaha, Childe, etc.) in seconds thanks to the other 3 players carrying the damage.

How to use it: bring in a strong-build friend, or use matchmaking if your server supports it, right when you need to clear a weekly/world boss for a character you just leveled up — faster and safer than soloing before your build is ready. Check boss-carrying team comps on our team building page.

A full 200 Resin bar takes about 26.7 hours to regenerate (8 minutes per point × 200) — under a day and a half, so letting it cap out means wasted regeneration. Suggested weekly order of priorities:

• Right after Monday's reset: spend your 3 discounted weekly-boss slots at 30 Resin each (90 Resin total thanks to the 50% Trounce Blessing) immediately on the 3 characters who need talent materials most urgently — don't push it to the end of the week and forget, and don't bother with a 4th clear, since the price jumps to 60 Resin for nothing.
• Talent books/weapon materials (20 Resin): these rotate on a fixed 2-day-plus-Sunday schedule (Sunday opens every domain) — hit the right day for the character's book type you actually need, don't farm the wrong domain by mistake.
• Whatever Resin is left: pour it into 40-Resin world bosses to stack up elemental gems, or artifact domains if your build is still missing pieces.

Pair this schedule with the priority order on our tier list page so you don't waste Resin on a character that isn't a priority push yet.