Unlimited
In both the Traditional and Advanced Formats, a card that is labelled "Unlimited" means you can use the maximum of 3 copies of that card allowed in your Main Deck, Side Deck and Extra Deck combined.
As of March 1st 2011, these cards are Unlimited in the OCG and the TCG where applicable.
Unlimited 「無制限」
<gallery widths="225px" heights="300px" perrow="3"> ChaosSorcererTU02-EN-UR-UE.jpg | Chaos Sorcerer (From Semi-Limited) Demise,KingofArmageddonDR04-EN-SR.png | Demise, King of Armageddon (From Semi-Limited) SnipeHunterGLD2-EN-C-LE.jpg | Snipe Hunter (From Semi-Limited) Deworlen,TigerKingoftheIceBarrierHA02-EN-ScR-1E.jpg | Dewloren, Tiger King of the Ice Barrier (From Semi-Limited) GoldSarcophagusSJCS-EN-UR-LE.png | Gold Sarcophagus (From Semi-Limited) SkillDrainGLD1-EN-C-LE.png | Skill Drain (From Semi-Limited) UltimateOfferingCP04-EN-SR-UE.png | Ultimate Offering (From Semi-Limited) </gallery/>