what is side deck in yugioh Complete Custom for Yu-Gi-Oh! YGOrganization | Extra Deck rules

Qliphort Monolith is a Normal/Pendulum monster with flavor text that looks like it was pulled directly from a computer's source code

If a TO plans on pre-registering Duelists for the Regional Qualifier, the TO may only pre-register a maximum of 75% of the expected attendance

The protagonist, Yusei, is a master at turbo duels, a new form of dueling with motorcycles and special speed spells

When a "Crystal Beast" monster you control is destroyed by battle and sent to the Graveyard: Place 1 "Crystal Beast" monster from your Deck face-up in your Spell & Trap Card Zone as a Continuous Spell Card, then you take no Battle Damage for the rest of this turn