In Trails in the Sky 1st Chapter, the spell Chaos Brand is a gamble. The spell has a 90% chance of applying the Confuse and Poison status effects on the targeted enemy. In addition, the spell reduces the defense, arts defense and speed parameters of the targeted enemy on a successful cast. To maximize the effectiveness of Chaos Brand, the player must rely on winning two consecutive games of chance, one for each status effect. The player has a 81% chance of successfully applying both the Confuse and Poison status effects to the targeted enemy.