The Red Shoes

Increases the holder's Ultimate Charge Efficiency by 20%. When they deal Ultimate DMG, all characters on the team gain 1 stack of Sanguine Step. Each stack of Sanguine Step increases CRIT DMG by 14% for 40s, stacking up to 3 times.

As soon as she slipped into those crimson shoes, she couldn't help but break into dance. Yet they'd always make her do quite the opposite of what she intended. Try to step left, and she'd step right. Try to step right, and she'd step left. Though she'd try to step forth, she'd step back. And so, in those red dancing shoes, she danced out of the ballroom and onto the street, then into the murky forest depths...

• Fate Clippings × 100 #13000004