If Accountant is the tracker:
Option #1: I kill Scarlet. I get lynched, you kill Accountant. You have an easy three-way with Icy and Penguin. We win.
Option #2: I kill Icy. I get tracked, you kill Accountant. You have a three way with Scarlet and Penguin. Won't win.
Option #3: I kill Penguin. I get tracked, you kill Accountant. You have a three way with Scarlet and Icy. Won't win.
If Icy is the tracker:
Option #1: I kill Scarlet. I get lynched, you kill Icy. You have a three way with Accountant and Penguin. We win.
Option #2: I kill Penguin. I get lynched, you kill Icy. You have a three way between Scarlet and Accountant. We might win if you sell the BlackVoid/Accountant team.
Option #3: I kill Accountant. I get lynched, you kill Icy. You have a tough three way with Scarlet and Penguin. Won't win.
If Penguin is the tracker:
Option #1: I kill Scarlet. I get lynched, you kill Penguin. You/Accountant/Icy. Won't win.
Option #2: I kill Accountant. I get lynched, you kill Penguin. You/Scarlet/Icy. Tossup.
Option #3: I kill Icy. I get lynched, you kill Penguin. You/Accountant/Scarlet. Tossup.
If Scarlet is the tracker:
Option #1: I kill Penguin. I get lynched, you kill Scarlet. You/Accountant/Icy. Won't win.
Option #2: I kill Accountant. I get lynched, you kill Scarlet. You/Penguin/Icy. Easy win.
Option #3: I kill Icy. I get lynched, you kill Scarlet. You/Penguin/Accountant. Easy win.