[3] The Cluemaster starts his criminal campaign by a daring but unsuccessful attempt to learn Batman's identity and gain a fighting edge.

[6] With several other villains, Cluemaster becomes a member of the Injustice League, a team of out-of-luck supervillains who, when banding together, become even less successful than they have been in their individual careers.

Trying to reform, the members later become the core of the equally laughable hero team Justice League Antarctica.

Cured of his compulsion to leave clues, Cluemaster originally joins a gang and plans their heists in exchange for 10 percent of their winnings.

He later kills the leader by suffocating him with a strong polymer over his mouth and nose, and begins to plan a master heist.

Making a costume for herself, she calls herself The Spoiler, finds out her father's plans, and leaves clues so that the police and Batman can stop him.

Spoiler uses the shock of the revelation to gain the upper hand and uses one of the chains attached to the Gunship lifting the canister to strangle Cluemaster, but Batman prevents this.

Cluemaster and his teammates in the Injustice League volunteer to join the second Suicide Squad, a group sanctioned by the US government, in return for a full pardon of his crimes.

[19] After Batman joins the war on the side of the Riddler and begins taking out Joker’s allies one by one, Cluemaster suggests to Kite Man that they let themselves be beaten rather than flee and face the wrath of both kingpins.

In a three-issue story arc beginning in Batgirls #13 (February 2023) Cluemaster kidnaps Stephanie but is thwarted by Cassandra Cain.

The pellets contain various offensive weaponry including: blinding incendiary flares, smoke, incapacitating gas, and explosives.