Business Ninpo: Caltrops is one of Answer's Special Attacks, first appearing in Guilty Gear Xrd Rev 2.
Overview[]
Answer rapidly throws a business card to his opponent's feet, which glows with a green aura while stuck in the ground. The 
version, indicated by a (一, Ichi?, lit. One) on the back, travels for 1/3 of the screen - while the 
version, indicated by a (二, Ni?, lit. Two), travels a little over 2/3. Each card lasts 12 seconds in the ground, or until another one using the same button is thrown.
While the card(s) are still in the ground, Answer can follow up with either:
| Attack | Input | Description |
|---|---|---|
  Business Ninpo: Under the Rug (ビジネス忍法・雲隠れ, Bijinesu Ninpō: Kumogakure?, lit. Business Ninja-Art: Vanishing into the Clouds) |
 + or with Business Ninpo: Caltrops active
|
Answer disappears into a puff of smoke, then reappears while holding his scarf in front of the screen like a cape. |
  Business Ninpo: Under the Bus (ビジネス忍法・覇権射忍, Bijinesu Ninpō: Haken I-nin?, lit. Business Ninja-Art: Hegemon's Sneak Shot) |
  + or with Business Ninpo: Caltrops active
|
Answer does a hand seal that summons a shadow clone with a ninja sword, jumping up a small distance for a rising slash before disappearing. |
While both follow-ups can be used without needing to use Business Ninpo: Caltrops, their effects will not occur; Under the Rug will have Answer disappear on the spot, and Under the Bus will only have Answer use the hand seal.
Details[]
To be added...