To get the most out of the Lucky Discounter event in Last Z: Survival Shooter, never spend Diamonds on discount rates below 60% and buy elite 70% to 80% rolls immediately before touching any refresh options. Lucky Discounter is the primary Diamond-efficiency event in the game, but settling for minor discounts or buying common farmable consumables quickly depletes your Diamond reserves without yielding meaningful Commander Power.

Never Settle for Sub-60% Discounts

The most common error is buying desirable items under weak 20% to 40% discount brackets. While a 30% discount offers a slight markdown compared to standard shop rates, Diamonds are the primary gating currency for VIP upgrades, seasonal events, and advanced technology.

Spending thousands of Diamonds at low discount percentages creates a severe opportunity cost. Unless a specific item is immediately required to secure a closing cross-server Duel ranking reward that day, ignore all discount brackets under 60%. Reserve your Diamond stash for 70% and 80% rolls, which maximize the account progression gained per Diamond spent.

Secure Top Discounts Before Refreshing Slots

Impatient board refreshing frequently leads to accidentally wiping top-tier deals. Lucky Discounter provides both daily free resets and Diamond-paid board refreshes. Players who cycle slots quickly often reroll the entire board or overwrite a high-tier slot before confirming their purchase.

Follow this inspection sequence when opening or modifying the event board:

  1. Scan for top brackets: Check every item slot for 70% and 80% discount tags before pressing any button.
  2. Purchase high-priority rolls immediately: Complete the purchase on an 80% discount slot right away. Do not leave it active while experimenting with adjacent rerolls.
  3. Monitor daily reset timers: Unpurchased deals clear when the daily server reset triggers a board refresh. Complete your required transactions before the timer expires.
  4. Cap paid Diamond refreshes: Do not repeatedly spend Diamonds to fish for a specific item. The cumulative refresh cost quickly cancels out the savings of any high discount roll you eventually find.

Target Permanent Bottlenecks Instead of Farmable Items

Lucky Discounter mixes rare progression materials with common consumables. Spending Diamonds on basic items like stamina cans, general speedups, and hero experience wastes the event's purchasing power. These items generate steadily through daily Radar Missions, Alliance gift chests, and world map zombie hunts.

Instead, allocate your Diamonds exclusively toward items that represent hard progression gates:

Item TypeEvent PriorityPurchasing Guideline
Research BadgesTop PriorityHard gate for late-game technology and Leaders' Will military research trees.
Golden WrenchesHigh PriorityRequired bottleneck for leveling Combat Vehicles and unlocking combat skills.
Drone Components & ChipsHigh PriorityProvide permanent squad stat multipliers and are difficult to farm freely.
S-Grade Hero FragmentsSituationalWorth acquiring at 70% to 80% discounts when actively starring core heroes.
General SpeedupsLow PriorityReadily farmable from daily Radar tasks and Alliance Duel crates; avoid buying.
Hero EXP & Basic ResourcesSkip CompletelyNever spend Diamonds here; passive production generates these in large quantities.

Maintain a Diamond Reserve and Sync With Scoring Events

Two preparation oversights often prevent players from capitalizing on Lucky Discounter:

  • Arriving without a reserve bankroll: Top-tier bundles at 80% off can still cost several thousand Diamonds. Enter the event cycle with a stored bankroll of at least 20,000 to 30,000 Diamonds. In the days preceding the event, stop buying optional black market items, halt daily market refreshes, and bank Diamond crates from Alliance Duels.
  • Purchasing outside event scoring windows: Check the active Alliance Duel calendar before spending. If an elite roll contains Research Badges or vehicle parts, buy and apply them during corresponding Duel point days (such as Tech Day) or during concurrent Diamond spending rebate events to claim milestone reward chests alongside your discounted upgrades.
Last Z: Survival Shooter icon

Free Last Z: Survival Shooter Codes

Current active codes and how to redeem them.

View Codes
Sarah Williams

Sarah Williams

Sarah specializes in RPG and collection games, explaining team building, character growth, and beginner-friendly ways to avoid expensive early mistakes.