Building your deck

The Deck section of a deck page is where the building happens. The part to understand is the bar along the bottom, which answers the four questions you care about while building; is this legal, how big is it, what does it cost, and how much of it do I already own. These numbers update as you work.

Adding cards

Add cards (A) opens a search over the card pool. By default this only offers cards that are legal in your format for your hero, but the rules dropdown can loosen this if you need to look outside the lines. You can limit it to cards you already own, allow cards the hero cannot legally play, or go past the usual copy limit.

The three boards

A deck here is split into three piles; Main, Inventory, and Considering.

Main deck and Inventory can be considered interchangeable and can be leveraged based off what makes sense to you. (Having main be the primary list with inventory being sideboard, main acts as the "deck core" with inventory being flex slots, etc).

Considering are cards that aren't part of the deck, but you may want to add later. It is a holding area for cards you are still thinking about, and nothing in it counts toward legality or deck size.

Tokens is a "virtual" board. Tokens that show here are derived from cards in your deck. For example, you will have a Gold token in the tokens section if you have a card that creates gold.

Reading the legality check

The legality of your deck is assessed against a rule engine that has differing rules depending on the format the deck is for. Legality is assessed based off the collective cards in your Main deck and Inventory.

Should a deck be illegal, the website's deck toolbar has a legality section you can open to reveal the offending cards. If there are multiple issues, all will be called out.

History

As you modify the deck, a history will be kept of all changes. This captures all updates to the deck, such as cards added, cards removed, board transfers, etc. A summarized history will be shown at the bottom of the deck list showing the most recent changes. In depth history can be viewed in the dedicated History tab on the page.

Seeing what you already own (Collection Context)

Collection context lets you see how much of a deck you own at a glance. Turn it on — Shift+C also toggles it — and everything you own is marked directly onto the deck. A Collection counter in the deck toolbar opens a menu showing the cards you are missing and what they'd cost to buy.

Note: collection context is on the website. The app does not mark owned cards onto a deck.

Versions

Decks can have multiple versions. A deck version is a completely isolated iteration of a deck; changes can be made freely to cards in the list without modifying other versions of a list. Deck versions can be used to track the progress of a list over time, or to make a quick iteration of your deck where you want to try a different approach.

As mentioned, versions are completely isolated from each other and each define their own attributes. This includes the cards, but also notes, matchup guides, match history, and everything else.

Versions can be compared to view differences across the various lists. If a deck has multiple versions, you can view the comparison view at the bottom of the deck list.