Bullet of Determination, Sinon

【AUTO】 【CXCOMBO】 When ""Cold-Hearted Sniper"" is placed on your climax area, if this card is in your center stage, and all of your characters are 《Anniversary》, choose 1 of the following effects and perform it. "This card gets the following ability until end of turn. "【AUTO】 This ability activates up to 1 time per turn. When this card attacks, during that attack, perform a trigger check 2 times on the trigger step."" "Choose 1 of your opponent's level 1 or higher characters, your opponent chooses 1 level X or lower character in their waiting room, and exchanges them. X is equal to the level of the character you chose by this effect -1."