Copycat-Injector Heals You During its God Mode

Don't know how influential to the meta this is, but it's a fun little detail, especially for anyone sad that they cannot use the original perk deck. This should also help alleviate the fact that you cannot get the 100% health gain when below half health.

Quick reminder that the invincibility kicks in if your armor is broken while you're at half-health. Combine that with the small health gain you get on headshot and, while it may not be entirely better or equivalent to Kingpin, you have a suitable alternative with Copycat.