To avoid wasting diamonds in the Last Z: Survival Shooter Lucky Discounter event, stop purchasing items as soon as discounts drop below 30% or when offered items do not support your immediate progression goals. The most effective approach is to clear only essential item slots that offer deep discounts while preserving a strict diamond reserve for future events.
When to Buy vs. When to Stop
The Lucky Discounter charges escalating prices or diminishing value as you continue buying. Before confirming any diamond transaction, compare the event offer against standard shop prices and your immediate upgrade needs.
| Item Category / Discount | Event Status | Recommended Action |
|---|---|---|
| 40% Discount or Higher | Core Progression (Speedups, Hero Shards, Research) | Buy: Clear the slot if it accelerates your current milestone. |
| 30% to 39% Discount | Non-Essential or Secondary Items | Evaluate: Buy only if it directly fills an active upgrade bottleneck. |
| Below 30% Discount | Any Resource or Item | Stop: Skip the item; cost per unit approaches standard store prices. |
| Full Shop Clear | Remaining Low-Value Slots | Avoid: Do not attempt to buy out the shop; no full-clearing bonus exists. |
Rules for Preserving Diamonds
To keep your diamond economy healthy during the event, follow these guidelines:
- Compare Unit Prices to the Standard Store: Check the base price of the item in the standard shop before buying. If the event discount offers minimal savings over regular store options, skip the purchase.
- Target Core Progression Materials: Focus exclusively on items that deliver immediate power boosts, such as speedups, hero shards, or critical research materials. Pass on luxury or secondary items that do not help you reach your next building or research target.
- Avoid the Completionist Trap: The Lucky Discounter provides no hidden rewards or completion bonuses for clearing every single slot. Treat every slot as an independent transaction and leave low-value goods behind.
- Maintain a Hard Diamond Floor: Reserve a minimum threshold of diamonds that you never spend during the Lucky Discounter. Holding a baseline stash ensures you remain prepared for time-limited hero shards, unique cosmetics, or higher-value events later on.
Free Last Z: Survival Shooter Codes
Current active codes and how to redeem them.
Emily Johnson
Emily writes practical mobile strategy guides with a focus on resource planning, base progression, and the early decisions that shape a long-term account.
COMMUNITY
Player Comments
76 players commented on this guide.
This helped me understand strategy much better.
I wish I had read this before upgrading the wrong thing.
This saved me time in the early game.
I tried this today and it worked better than my old setup.