Push wisps and lumber when your current lane can survive the next credible wave plus a realistic send. Stop when the purchase would leave a meaningful defensive weakness uncovered. The best economy timing is therefore a repeated judgment about risk—not a universal “wisp on wave X” build order.
What do wisps and lumber upgrades actually do?
Wisps increase lumber production. Lumber-rate upgrades make that worker economy produce faster. Lumber can then be spent on enemy sends and King decisions, while many sends add income that improves later gold. This creates a compounding economy: an early safe investment can fund more pressure and more future defense.
Compounding is also why a failed push hurts. Gold used on economy cannot stand in the lane that round. A leak may give opponents cleanup gold, damage the King, break the team’s send plan, and force inefficient repairs.
Use the next credible threat, not the bare wave
“Can I hold the natural wave?” is too narrow. Ask whether you can hold after the opponent adds the kind of send they can reasonably afford. The answer depends on attack and armor matchups, unit count, auras, range, first-contact placement, and whether a teammate can clean a small leak.
Your formation covers the next matchup, placement is stable, and the team does not need immediate defensive insurance.
A missing frontline, damage type, area coverage, or key upgrade makes the next send timing dangerous.
You are safe now but the next roll or scouting information may reveal a better unit than an immediate purchase.
A strong holder may let another lane push harder, but only when the team understands who is expected to clean leaks.
What does 10/3 mean?
Economy calls usually state wisps / lumber upgrades. A player who says 10/3 has ten wisps and three rate upgrades; 10/7 uses the same format. It is a snapshot, not a score. Two players at 10/3 may have very different defense, income, saved lumber, and risk.
The Legion TD glossary covers “push,” “sui,” “OB,” holder, and other compact calls that commonly surround economy decisions.
How to tell if you are overbuilt
Overbuilding means more defensive value has been committed than the current plan reasonably needs. Clearing early is one clue, but not proof: a unit purchased now might be essential two waves later. Compare what the formation actually contributed, what credible send it covered, and whether cheaper positioning or a targeted upgrade could have achieved the same safety.
- You clear comfortably even after the expected send and preserve most of the frontline.
- Your newest unit never reaches a useful target or duplicates a role already covered.
- A comparable lane holds with less value because its placement or upgrade timing is better.
- Your team lacks lumber pressure despite several lanes carrying large unused safety margins.
What should you do after a leak?
Diagnose before reacting. If one tank died too early, placement or a small frontline addition may repair the lane. If all damage was the wrong type, another copy of the same unit will not solve the matchup. If the lane is deeply inefficient, trying to buy back every missed hold can consume the economy without restoring it.
A controlled small leak can sometimes be cleaned by a designated holder; repeated unplanned leaks cannot. Tell the team what failed, ask what the next send is, and spend only after identifying the missing role.
A practical economy rhythm
- Before the wave: compare your formation with the wave and realistic send.
- During first contact: watch what tanks, what gets surrounded, and what cannot reach a target.
- After the wave: decide whether the weakness was value, matchup, positioning, or send pressure.
- Before spending: look one more wave ahead so today’s repair does not create tomorrow’s failure.
- Then push: move genuine surplus into wisps or lumber rate while preserving the team plan.
Continue with the sends guide to turn that lumber into a plan, or use the wave guide to improve the threat assessment that tells you when pushing is safe.
Exact worker timings and breakpoints change with the selected mode, roll, and map balance. This framework is deliberately based on observable risk rather than a patch-specific schedule.
Frequently asked questions
When should I build my first wisp in Legion TD?
Build a wisp when your current formation can handle the next credible wave and send without spending that gold on a more urgent defensive role. The right timing depends on your roll, placement, team plan, and opposing pressure.
What does 10/3 mean in Legion TD?
10/3 is economy shorthand: the player has ten wisps and three lumber-rate upgrades. Similar calls such as 10/4 or 10/7 describe the same two counters.
Is more lumber always better in Legion TD?
No. Lumber creates future pressure and income, but an economy upgrade cannot defend the wave currently entering your lane. Pushing is strongest when the defense remains efficient and dependable.
Should I keep pushing economy after I leak?
Not automatically. First identify why you leaked and whether a targeted defensive purchase can repair the lane efficiently. If the lane is structurally weak, blindly adding either more economy or more of the same units can make the problem worse.