Gnomeregan Walkthrough

Gnomeregan is a frustrating dungeon. Boss 1, Crowd Pummeler 9-60, requires you to protect high-cost minis and use fast ones for the Gnomish shield. Boss 2, Electrocutioner 6000, has an AOE floor; defend the first enemies and use flying minis like Gargoyle for towers. Boss 3, Mekgineer Thermaplugg, is easy—just keep sending minis.

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Gnomeregan is the dungeon I hate the most.

Boss 1: Crowd Pummeler 9-60

The Pummeler that knock minis overboard is annoying. Lucky the trace of the pummeler could be predicable, and the flying minis are immune to knock.

Do not let your high cost mini to be knocked
Use fast or unbound mini to get the shield -- Gnomish harm prevention belt. If you don't get the shield, boss's S.A.F.E pilot will take it, make it hard to handle.

Boss 2: Electrocutioner 6000

The floor under the towers continuously fires AOE make this level very annoying.

In the beginning, should defence the first spawn of enemies.
To avoid the electronic floor, my best practice is to use a flying mini like the Gargoyle to take the towers quickly.
Stonehoof Tauren with momentum is another minis to handle tower or Mountainer.
After taking over these towers, must use a unbound minis to get the chest, or boss will spawn too many enemies