POE 3.29 Luminary Mercenary Guide from U4GM

POE 3.29 Luminary lets your Scion permanently hire a Mercenary and equip selected unique items through ascendancy passives. For Facebreaker Earthshatter, you want a Swiftblade companion with Rallying Cry before committing to the swap, because that skill supplies damage based on the companion's weapon. Planning your POE currency spending around those requirements gives you a clear first upgrade target. Your character handles the slams while your companion supports the damage and, later, your defence.

When should you switch to POE 3.29 Luminary Earthshatter

Switch after you've secured Facebreaker, a working Rallying Cry companion, and the equipment needed to cover gaps in the buff. Start with Sunder through the campaign as an Ascendant, then move to Earthshatter after entering Maps when those pieces are ready. You can begin without unique items, and your first suitable Mercenary doesn't need perfect equipment.

The damage pairing explains why the companion matters so much: Rallying Cry adds physical attack damage derived from its weapon, which Facebreaker then amplifies for your unarmed attacks. Prioritize the companion's weapon damage when assessing upgrades, since it feeds directly into that interaction. This configuration uses pure physical damage and Resolute Technique, so follow its non-critical approach when changing your passive tree.

Before the swap, get an amulet with at least a Tier 2 Adds Physical Damage to Attacks modifier. That gives you damage against ordinary enemies during early Rallying Cry downtime, when relying entirely on your companion can leave your attacks feeling weak. Regular Facebreaker gloves are enough for the transition; consider Foulborn Facebreakers after the basic setup works.

Which equipment completes the POE 3.29 Luminary mapping setup

Your mapping preparation needs added lightning damage to attacks, complete shock avoidance, and a shield suited to the block setup. Living Lightning Support requires that lightning modifier on equipment, but its tier doesn't matter, and either a ring or an Abyss Jewel can provide it. A ring with added cold or fire attack damage can have that modifier changed through the Horticrafting Station using Crystallised Rancour.

Check the combined Chance to Avoid Being Shocked on your belt and Abyss Jewel. When that total falls short of 100%, use Chance to Avoid Elemental Ailments on your boots to finish the coverage. Keep the Garukhan minor Pantheon while assembling these pieces, and treat the listed shock protection as incomplete until you meet the full condition.

Replace your axe and two-handed weapon passives with shield and block investment during the equipment change. Versatile Combatant supports the listed 68% attack block and 65% spell block, but reaching those values also depends on an adequate Increased Block Chance roll on your shield. Use Flesh and Stone in Sand Stance alongside Endurance Charges and Fortification, and prioritize Life plus attack speed on jewels, especially Increased Attack Speed While Holding a Shield.

How do Rallying Cry and Mercenary upgrades fit together

Rallying Cry supports your unarmed damage, while your Warcries detonate Earthshatter's spikes after each slam. The initial hit and spike explosions can damage the same target, so watch both the companion's buff and your detonation rhythm during tougher encounters. A stronger weapon helps the buff, but keeping that buff active is part of making the setup perform consistently.

Living Lightning Support supplies allies for Rallying Cry in place of Herald of Purity, freeing Mana Reservation. The listed Warcry quality arrangement is 16%/12%/8% to stagger explosions, with 20% quality on Intimidating Cry and Autoexertion. Increased Area of Effect helps clearing and overlapping damage in enclosed fights; Brinkmanship deserves attention when Foulborn Facebreakers aren't part of your equipment.

Take Noble Blood first to establish permanent hiring, then unlock the unique equipment categories your companion needs. Permanent Mercenaries require the relevant Luminary passives to benefit from unique items, so match your ascendancy progression to your planned equipment. The listed route opens Legendary Belts and Legendary Rings for Kaom's Binding and Timeclasp, followed by Legendary Helmets and Legendary Boots for Foulborn Deidbell Single and Kaom's Roots.

Loyal Bodyguard comes afterward, with its approximately 20% less damage taken depending on your Mercenary having more maximum Life than you. Recheck that comparison whenever you increase your own Life. Foulborn Deidbell Double is a distinct later upgrade for Rallying Cry, and Echoes of Creation belongs further along the equipment progression.

Before changing your character, check the amulet modifier, lightning requirement, shock avoidance total, and companion's Rallying Cry. Then plan your next upgrade through POE currency trade around the specific missing piece you've identified, keeping your first Maps focused on a functioning setup.