what is the extra deck used for in yugioh Complete Custom Yu-Gi-Oh! How many cards can you

If this card is discarded to the GY by card effect: Target 1 card your opponent controls

Master Peace, the True Dracoslaying King Tier Ranking True Draco are currently in Tier 1 along with Pendulum Magicians, although this is likely to change with the release of SPYRAL Double Helix in Circuit Break on October 20th

Wind Drainer manipulates the levels of Performage monsters

Some of the Monster cards in this deck will be X-Head Cannon , Elemental HERO Burstinitrix , Achacha Archer , and Trickstar Lycoris , because, when summoned with their Snipe skill, they will be able to inflict direct damage to the opposing lane they are summoned within

set exclusive

Not sure if it really is a spacesuit