History of Bane of Bosses

Bane of Bosses is a basic triumph: defeat combatant bosses, often found in public events and Strikes.

Status

Stub from the game text. Beyond that description, no source I could open gave the kill count, seal or reward (the light.gg page was blocked). Search snippets suggest it was added in Season 12, but this is unverified.

Tip: public event bosses and strike bosses are the quickest sources, per the description.