A 4-link skill gem represents one of the biggest power spikes in PoE 2’s progression curve, and the Greater Jeweller’s Orb is the tool that guarantees you reach this crucial breakpoint without relying on socket RNG. While nearly every skill in the game benefits from additional support gems, some skills transform so dramatically with a fourth link that they become functionally different abilities—faster, stronger, or significantly more efficient. Understanding which gems gain the most from this upgrade helps you prioritize your Greater Jeweller’s Orbs and optimize your build early.High-impact primary damage skills are the first category that skyrockets with a 4-link. Projectile and AoE gems such as Lightning Arrow, Fireball, Splitting Steel, and Glacial Cascade scale heavily from multiplicative support gems. Their damage tends to grow exponentially when you add another gem that enhances base hit damage, AoE, or chaining mechanics. A Greater Jeweller’s Orb ensures these skills reach the threshold where they can carry mapping without constant gear swapping, letting you reserve more valuable poe Orbs for higher-tier upgrades.Damage-over-time and ailment-based gems gain even more from the 4-link breakpoint. Skills like Caustic Burst, Ignite-focused Firestorm builds, and Poison-based melee attacks all rely on stacking effects from support gems. These builds often need multiple conditional multipliers—duration, ailment scaling, conversion, or increased effect—to reach their true potential. A fourth link allows these builds to unlock their defining mechanic earlier, making leveling smoother and boss fights faster.Minion gems also stand out as prime beneficiaries. Summon Skeletons, Summon Wolves, and Golem skills dramatically improve with supports that increase minion damage, attack speed, or survivability. Because minion builds often juggle multiple gem setups, securing a guaranteed 4-link early prevents your damage from falling off in mid-game maps. The Greater Jeweller’s Orb effectively stabilizes your minion core without forcing you to waste time on item rerolls.Movement and utility gems may not be your first thought, but they can greatly benefit from a fourth link as well. Dash, Leap Attack, and movement-support hybrids scale well with cooldown reduction, buff effects, or mobility-enhancing supports. For defensive setups—like Molten Shell, Guard spells, or Frost Wall—the fourth link creates room for additional mitigation or automation without sacrificing core functionality. If you’re pushing higher-tier content, ensuring your defensive utility is properly linked can be just as important as boosting your main skill.The Greater Jeweller’s Orb shines because it removes uncertainty from this progression path. Whether your build relies on burst damage, stacking ailments, minion control, or speed-based rotation, the fourth link amplifies your strategy without forcing risky crafting. And if your drop luck runs dry, you can always supplement your progression by trading or using economic routes that rely on higher-value currency, including buy poe Divine Orbs.When used strategically, the Greater Jeweller’s Orb doesn’t just improve a skill gem—it accelerates your entire build. If you’d like, I can also create a list of the top 20 skills that gain the most from a 4-link or tailor recommendations to your specific build type.