Tank Buster procs weird on Shiv's execute

[sevenflags57]

Using Shiv's ult to execute an enemy with more than 165 health remaining causes Tank Buster to "proc", but because this is Killing Blow, the target is already dead. This results in tank buster doing no damage (not zero damage), but still going on "cooldown".

View attachment Deadlock - 2025-06-26 2-19-33 PM - Kill.mp4