Arena

Try a deck against an opponent you choose. Nothing is won or lost: no loot, no wear on your cards, no cost.

You bring one of your own decks, thirty cards and a deck master. Build it at a Curator's Office first; the Arena links you to one when you have no deck to fight with.

Upgrading it lets you decide more of the opposing deck. At level 1 you can only practise against the starter decks.

It is also where two players can play a live match against each other.

Practice matches are real. Bring one of your decks, pick a side and a starter deck to fight, and play the match out card by card or watch it play itself.

A Reaction happens as you play it, not when the condition you named comes true.

Arena costs 300 wood and takes 10 minutes to build.

You need a Curator's Office at level 1, and a Town Hall at level 3.

Every level after that costs about 35% more and takes about 40% longer than the one before, and stone is part of the price from level 5.