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Omnotron Defense System Guide with Cheap Decks for Blackrock Mountain

Last updated on Apr 30, 2015 at 16:32 by Sottle 10 comments

Table of Contents

Omnotron Defense System is the first boss of the Hidden Laboratory, the fifth and final wing of Blackrock Mountain. In this guide, you will learn how to use cheap decks to defeat Omnotron in both Normal and Heroic modes.

Omnotron Defense System Normal Omnotron Defense System Heroic

1. Health, Hero Power, Cards, Etc.

Normal Heroic
Health 30 30 (+15 Armor)
Hero Power Omnotron's Hero Power changes as he gains more Mana. When he has enough Mana to cast his current Hero Power, he casts it and it gets replaced by a new Hero Power, following the order in the list below. When Omnotron reaches Activate!, it remains his Hero Power for the remainder of the game.
Deck

2. Strategy and Deck Building

The Omnotron fight is based around various Hero Power minions that are summoned which all have various symmetrical effects on the fight. On Normal mode, no particular strategies are required, but packing extra spells in your deck to take advantage of the Spell Damage and Spell Cost reduction effects can be beneficial.

On Heroic Mode, building decks that abuse these mechanics is almost required, since you will quickly be outclassed if you try to fight fairly. Various various decks that do take strong advantage of these effects, such as our Heroic decks listed below, can make the fight very straightforward.

To help you build your decks and defeat Omnotron in both modes, here are decks we defeated him with:

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