1. Basically you can bring 3 cards per character, so in a 3v3 its nine cards total. You may only PLAY two per character, but you may have only two cards for one character of a class, and four cards for another. You can have 2 equipment cards on a character as long as they aren't the same equipments and the equipments match that class of character.
Example: Your Warrior character brings Charge and Cleave, while your Warlock brings Summon Jhuroon, Corruption, Death coil, and Hellfire. Your Mage brings Iceblock, Flamestrike and Blink. The total is nine cards, but the Warrior brought 2 and the lock has 4.
2. If Debuffs dont specify when they drop (most of the time its remove at ticks 5/10 or other appointed time) they remain indefinatly or till the character dies.
Example: Curse of Agony will remain on the debuffed character till the character dies or is removed by a card like Cleanse, continuing to stack counters at ticks 5/10.
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Rules Knowledge - World of Warcraft Minis: Level 1
Tournament Organizer: Level 1
Top 16 2009 Durotar Realm Championships