Initially, Shixeen is one of the most intimidating characters of Eiyuden Chronicle: Hundred Heroes. That is, until you find out she only wants to challenge you to a card game and not fight your team. But put her on the battlefield and she's back to being intimidating, especially with her ability to give all fighters ability to damage armor.
First, you'll need to make sure you've recruited Glen and built his card shop at the Drafting Studio. The next piece you'll need to have Shixeen appear is to upgrade your card shop to level three and have at least 120 cards in your deck, so you'll need to spend some baqua to build one. Once you've done all of that, you'll see Shixeen, with her back turned, standing to the left of the card stand. Interact with her and she'll tell you she wants to beat you... in cards. Defeat her and she will be recruited into the Alliance!
Role: Battle
Range: Medium
Damage Type: Thrust
Defense Action: Pulverizing Warcry - Let out a powerful warcry to grant allies damage to armor for this turn.
Rune Slots: 4
Active Skill: Feint Thrust - Deal 1 enemy thrust damage with a high stun probability. Cost: 2 SP.
Enhanced Skill: Rune of Power - Increases strength by 5%.
Steeryn Combo (w/Dijkstra) - Deal moderate thrust damage to one row of enemies. Cost: 2 SP.