Hunter's Grenade

The Hunter's Grenade is a unique, grenade skill which deals no damage, nor does it affect the player. Unlike other skills, it only affects enemies that drop uncollected blueprints, turning them into a challenge for a guaranteed blueprint drop.

Throwing the Hunter's Grenade at an eligible enemy will cause it to despawn from the player's inventory and transform the enemy into an Elite version, as well as dropping a Blueprint Extractor nearby.

The Hunter's Grenade is unlocked from the Collector through the Specialist's Showroom upgrade. Once unlocked, it always appears in the Prisoners' Quarters behind a gold door within the Specialist's Shop, which can be unlocked for 3000 base gold, or destroyed for a 50-kill curse.

Trivia

 * The Hunter's Grenade references a Poké Ball, a spherical device used to capture Pokémon in the well-known Pokémon franchise.
 * The description of the item is a reference to the franchise's "Gotta catch'em all!" slogan.
 * In early development for the Baguette Update, the Hunter's Grenade was instead named "Pokebomb".
 * When the Grenade-spawned Elite is below 40% health, an icon that looks like a Poké Ball appears over them.
 * The fact that the Elite must be weakened before using the Blueprint Extractor might be a reference to the capture mechanic in the video games, where the chances of capturing a Pokémon increase as their health decreases.
 * Prior to v1.5.5, the Corrupted Update, if the elite enemy was defeated without using the Blueprint Extractor, it would not drop a new Hunter's Grenade.