what are double sleeved cards 600 Pack Card Sleeves Clear, Perfect Fit Inner Sleeves Ideal for Double-sleeving, Trading Card Sleeve Compatible with MTG, PKM, TCG and Gaming (60 Microns) : Toys & Games What is double sleeving in

By sending a "Monarch" Spell or Trap from your hand to the Graveyard, you get to draw 2 cards

Extellarknight Constellar Ptolemy 7 Rank 7 LIGHT Machine Xyz Effect Monster ATK/ 2700 DEF/ 2700 3 Level 7 monsters Once per turn, during your Main Phase 2, you can also Xyz Summon Extellarknight Constellar Ptolemy 7 by using a Tellarknight or Constellar Xyz Monster you control (transfer its materials)

You can only use 1 "World Soul - Carbon" effect per turn, and only once that turn

Its GY effect, which is draw power and recycling for Couplet to search it next turn, is also useful as a chain block, most applicable with Bachas GY effect as shes usually sent to the GY as Fusion or Link Material

Ground Xeno has already seen success in the Yu-Gi-Oh

Creatures you begin to control later in the turn won't be affected