Best Last War Survival Season 4 Week 1 Guide: Lighthouse, Blood Night & Tactics Cards

Season 4 keeps the familiar early-season loop: build Virus Resistance, capture Digging Strongholds, defeat Doom Elites, and improve seasonal buildings. The major goal-tab change is that progress no longer depends on continuously running a furnace or lab. Instead, you must keep the Lighthouse illuminated for a required number of hours.

Treat Lighthouse time as a planned account objective rather than background decoration. Accumulated illumination unlocks rewards such as Legendary Tactics Card Packs and Overlord Supply Chests, so check the goal tab before spending power on unrelated map activity.

At the start of Week 1, global donations unlock the infrastructure that determines how quickly your server can progress. The Optoelectronic Lab is the primary source of Virus Resistance, and the Quartz Workshop produces the Quartz required for later seasonal upgrades.

Season 4 reduces the Alliance Center requirement from five buildings in Season 3 to four buildings. Future weeks unlock the Stone Warehouse in Week 2, Oil Warehouse in Week 3, and Magatama Warehouse in Week 4, so early donations should focus on the infrastructure that improves immediate resistance and Quartz flow.

Magatama is Season 4's new currency, with Blood Night Descends as a key early source. The Magatama Shop includes standard resources and Speed-ups, but the most account-changing early purchase is the Legendary Tactics Card Pack.

For both free-to-play and spending accounts, getting a Core Card early can strengthen either combat or gathering efficiency before the card system fully opens. Buy flexible resources only when they solve an immediate bottleneck; otherwise, protect Magatama for the Legendary pack.

Maneki-neko Light On replaces the treasure hunts from earlier seasons. Fortune cats are hidden in dark areas, so illuminating your base and its surroundings is the first way to reveal them.

Add an Electrician to troop marches when attacking monsters. The march lights its route and can reveal mini-cats for immediate collection. Large Maneki-neko work like earlier large treasures: up to 15 alliance members can claim rewards from one spawn, so share the location as soon as you find it.

The $20 Luxury Battle Pass includes standard resources, Profession XP, and Hero Shards, but it does not include Weapon Shards this season. The lower-cost Advanced Battle Pass is the stronger low-spender value because its Luxury Choice Chest lets you choose a focused progression reward.

When opening that selector, choose the Level 5 Drone Component Chest. It produces more durable account progress than the competing options. The free pass also ends with a 30-day Chroma Base Skin, Auroraclaw Fighter, but it cannot be used unless you already own the corresponding premium base skin, so free-to-play players should not plan around it.

Protector's Field replaces the earlier Altar role. Weekly Pass players receive Protector Horns for it, and upgrades now combine two benefits: more troop capacity and Troop Type Boosts for Attack, Defense, and HP.

Levels 1 through 9 require standard Food and Iron. Seasonal Quartz is required beginning at Level 10, so do not stockpile Quartz solely for this building during Week 1 if your Optoelectronic Lab still needs upgrades. Resistance progression has the more immediate payoff.

Weekly Pass players can build up to five Quartz Workshops. The important mechanic is that every workshop level provides the same resource-production increase. A single Level 30 workshop therefore does not create a special production break point.

Level all workshops evenly instead of rushing one workshop far ahead. Balanced upgrades minimize the cost needed for each extra unit of hourly Quartz and leave you with more seasonal currency for Labs and later Protector's Field levels.

The Lighthouse dispels darkness and raises Virus Resistance. As the Optoelectronic Lab reaches Levels 5, 10, and 15, it unlocks Zombie-powered Generators. Attack standard map zombies, collect the cage icon that appears, and use those captured zombies to fuel the generators.

Brightness levels L1 through L4 trade power consumption for a larger illuminated area and more Virus Resistance. Level 4 can grant +250 Virus Resistance, but its energy cost makes it unsuitable as an all-day setting. Turn it on immediately before a coordinated rally against a hard Doom Elite or Digging Stronghold, then lower it once the fight is won.

Blood Night Descends turns the map dark red and sends Doom Elites across it. It is one of the strongest early Week 1 farming windows because every Doom Elite resets to Level 1 when the event begins, letting lower-resistance players climb the event ladder instead of being locked out by high initial elite levels.

Farm the reset for Stones, Quartz, Hero's Return Recruitment Tickets, Magatama, and Tactics Cards. Week 1 unlocks only Stage 1, so it is a PvE event for now. Use this predictable window for coordinated farming before later weeks add the expected PvP pressure.

The Season 4 Profession Tree is capped at Level 100 and introduces map-control skills such as Summon Mummies and Oni Summon. At Profession Level 80, Tactics Card slots unlock and become a new source of targeted account bonuses.

Battle Cards use the top slots for PvP and PvE bonuses such as city march speed or Tank HP. Resource Cards use the lower slots for gathering, Iron output, and construction speed. Duplicate cards cannot stack, so build a mixed deck instead of collecting multiple copies of the same bonus.

Season 4 Week 1 changes the normal weapon-pass expectation. Instead of the usual Aircraft Hero weapon pass, the featured pass is for Lucius's Exclusive Weapon.

If you budget around squad upgrades, verify that Lucius fits your current or planned lineup before committing. The changed pass is useful for players building around him, but it should not force an otherwise inefficient squad investment.