In addition to all that, Duelists will be able to find a wide variety of cards for many different strategies and situations, including A metamorphic Dragon that lets you trade a card in-hand for a monster that matches the Type and Attribute, but not the name, of something on the field
Personally however, I think the Grey and Back imprinted theory is probably correct
Woodweaver's Puzzleknot: [Category 1] 2 mana in, 3 Energy out, then 3 mana in, 3 Energy out
It's also unaffected by Monster effects, giving it tons of protection as only Spell and Trap cards can destroy it
Data sheets & downloads External format 92 x 58 mm Colour blue For inserts 86 x 54 mm Material Hartplastik Opening Schmalseite Description Credit card sleeves Variant thumb slot EAN 4068243025637 Weight 0,010 kg / 1 Pieces Manufacturer SPRINTIS Schenk GmbH & Co