Last War Season 2 to Season 3 Buffer Guide: Oil Era Priorities

During the off-season buffer period between Season 2 and Season 3—referred to as the Oil Era in Last War—shift your daily focus entirely from temporary seasonal mechanics to permanent account progression. The conclusion of Season 2 removes environmental survival demands, giving you an uninterrupted window to research permanent skill attack tech, unlock Headquarters levels up to Level 35, and accumulate resource reserves for Season 3.

Research Priorities: Focus on Skill Attack and Combat Lethality

Once seasonal research trees close, redirect all Tech Center capacity into standard military trees that permanently boost your main squad's damage output.

• Skill Attack Power: Prioritize skill attack nodes to amplify the burst damage of back-row heroes during PvP battles and world boss encounters.
• Squad Lethality and Survivability: Advance general combat branches that increase squad lethality, mitigate incoming damage, and speed up troop training.
• Unit Reinforcement: Upgrade branches that enhance troop defense and reduce casualty rates during competitive alliance engagements.
• Development Nodes: Complete any remaining economic or construction speed research to reduce the long upgrade timers required for upcoming high-tier structures.

Base Progression: Pacing Headquarters 31 to 35

The transition period unlocks Headquarters (HQ) progression from Level 31 to Level 35. These levels raise your stat caps and unit capacity, but rushing them without planning will exhaust your materials.

1. Match Upgrades to Event Days: Time your major building finishes with Alliance Duel construction days or server arms race milestones to capture progression rewards.
2. Coordinate Alliance Buffs: Request construction minister appointments or alliance help rotations before starting multi-day building timers to shave off substantial build time.
3. Preserve Fluidity: Do not spend all your speedups and resource chests to jump multiple HQ levels at once. Leave adequate reserves to meet immediate construction requirements on Day 1 of Season 3.

Resource Management and Preparation Overview

During Season 2, stamina and materials were continuously consumed by seasonal tiles and virus or temperature mechanics. With those drains gone, convert daily stamina into universal speedups, hero shards, and resource containers by clearing radar missions and world map zombie bosses.

Keep all gathered iron, food, and gold inside unopened inventory bags rather than claiming them into your warehouse. Open resources can be plundered during cross-server duel events and off-season raiding windows, whereas boxed resources remain completely protected until needed.

Use the remainder of the buffer period to test hero formations, balance your gear levels across your primary squad, and ensure your alliance establishes upgrade rotations before Season 3 begins.