Legion Td Guide ((free))
Every time you kill a wave with zero leaks, you have a "safe window" to buy workers.
In competitive play (like Legion TD 2), players often start with a "Mercenary" (a hired unit) on Wave 1. This gives you immediate income and puts pressure on the enemy. If you can handle a Mercenary on Wave 1, do it. It pays for itself by Wave 3. legion td guide