B.E.B.O.

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Mercenary — Legendary

Set: Campaign: Chapter 2
Played in: The Campaign, in your party
How obtained: Kickstarter (the game's own note)

Default form (level 1)

Health: 22
Hand size: 7

Party passive

At the start of the game, if an opposing champion has more health than you, summon a Worker Bot.

Upgraded form (level 2)

Health: 22
Hand size: 7

Beep, Bop, Beep, Boop - BASIC: Create two random Robot Upgrades. Choose one of them and put it into your hand. Put the remaining cards into your crypt.
Routine Maintenance - When a non-Robot troop enters play, exhaust it.
Security Upgrades - Robots you control have +1 for every 3 actions in your crypt.
Security Upgrades - Robots you control have +1 for every 3 troops in your crypt.

What upgrading changes

New
Security Upgrades - Robots you control have +1 for every 3 actions in your crypt.
New
Security Upgrades - Robots you control have +1 for every 3 troops in your crypt.

Upgrade Your Mercenary: how it worked

Complete a Mercenary Challenge node in a dungeon to earn upgrade marks. Earn 2 marks and pay the mercenary’s fee to upgrade them permanently for your account.

Dungeon encounters can now be marked as a Mercenary Challenge. Defeating that encounter with a Mercenary will award bonus gold and grant progress towards upgrading that Mercenary.

The game's own words. The fee was set by the game's server, so its amount isn't in the game files. A mercenary could be upgraded once.

Party passive

At the start of the game, if an opposing champion has more health than you, summon a Worker Bot.

Deck rules

Can't include cards with cost or less in your deck.

Shard Alignment

Number of each card you can add based on rarity and shard type
Shard	Common	Uncommon	Rare	Legendary
	0	0	0	0
	2	2	2	2
	3	3	3	3
	3	3	3	3
	0	0	0	0
Artifact	4	4	4	4