Peasant

315 can feel inconsistent, but you can usually hold spawn with 315 on level 1. Do not try that at the back.

Not a good DPS unit, but a great addition to any build to help hold level 10 — or just as spam.

Spawn spam

315 (360) – ~495 – 720 on 3 (subject to change) – 1275 on 4 (subject to change)

Preferable you have other stuff or already moved back.

Back spam

360 – 510 – 765 – 1400(?)

If you did not already build something else on 4, at least do it on 5.

Wall spam

360 – 510 (if you did not build badly anyway)

Level 3: if you started wall you should have something else to build by now.