Otto The Kaiser

Otto The Kaiser (Otto the Killer in Japan) is an antagonist fanfiction character created by Feder373. His name is always mysteriously written as "OTK", which makes a play on One Turn Kill. He wears a helmet, which increases his resemblance to German Chancellor  even more. He tends to use military expressions while talking, including his recurrent tagline, "Blood and iron", an expression that was used by the same Bismarck in a. He and all his subordinates use OTK Decks that are famous through Yu-Gi-Oh! history to try to defeat their victims.

More info to be added later.