OP-03 is out of print in both JPN and EN
Some helpful tips: To end up with your full ideal endboard you'd typically need these 3 cards in hand/field (Sombre, Pollux/Leonis, Zubeneschamali), so what cards you decide to pitch into the GY with your skill with depend on how you want to accomplish this, e.g.: Rasalhague + Sombre: pitch Zubeneschamali and Leonis in the GY Sombre + Pollux/Leonis: pitch Zubeneschamali and Rasalhague in the GY Pollux is an activated effect when normal summoned and Leonis a persistent effect as long as Leonis is face up on the field, be careful of this when doing your summons When going first, it's possible to activate Star Chart twice to draw twice if you summon Pleiades, draw from Star Chart, return Star Chart to hand and reactivate, then summon a second Constellar XYZ
Foretell (During your turn, you may pay and exile this card from your hand face down
This TCG is one that can be fun to collect and play in equal measure if youre a fan of some of the series within it, owing to the novelty that you can build a deck thats a dream team of your favourite heroes and villains
Sabo Turn 5 (9 Don): 8-cost + 6-cost Dragon
Some of the Rainbow, Secret Rares are clocking in at some impressive numbers, with the full art Rainbow Rare version of Professors Research 209/202 being among the highest contenders