Starguard: Evo Merge TD Unit Synthesis and Board Guide

To maintain scaling damage in Starguard: Evo Merge TD, combine matching pairs of base troopers as soon as they appear to evolve them into higher-star variants. Prioritizing synthesis early reduces board congestion, opens buffer tiles for new summons, and generates the damage required to clear enemy waves and bosses.

Managing Board Space and Unit Synthesis

Grid space is your primary tactical limitation during combat waves. Because summoning adds base troopers to random available tiles, a crowded board prevents you from completing key merges. High-star troopers deal higher single-target and area damage than multiple un-merged low-star units combined while using only a single tile.

Follow a consistent board-management cycle to keep your layout clear:

Summon: Purchase new troopers to populate empty tiles.
Match: Combine identical low-tier units into higher-star variants immediately.
Clear Space: If the board fills up and no matches exist, remove or clear your weakest standalone units to free up grid buffer space.

Unit Focus	Tile Footprint	Primary Benefit	Strategic Role
Low-Star Troopers	Multiple tiles	Low individual DPS; high board clutter	Initial wave control and merge material
High-Star Troopers	Single tile	High DPS; space-efficient output	Defensive anchors for mid-to-late waves

Wave Timing and Anchor Positioning

Merge your units while incoming enemies are still at the start of their path. Synthesizing units while enemies are already approaching your central defense can create temporary damage gaps that allow fast foes to leak through.

Once you create a high-tier trooper, treat it as an anchor for your line. Do not merge or replace your strongest defender unnecessarily. Instead, perform all subsequent summons and low-tier merges on adjacent tiles around that anchor to continuously build DPS without weakening your primary damage source.