This is a case enchantment, which means you need to fulfill the second condition of controlling no skeletons, make it to your end step to solve the case, then unlock access to the final part during your next turn
With a solid market presence and intriguing price trends, this set warrants a detailed exploration
C Common Harpies' Hunting Ground X SPELL Field All Winged Beast monsters on the field gain 200 ATK/DEF
Additionally, Sabrina is not considered a "common card" in Booster Packs, so getting multiple copies through this method, especially as an F2P player, may take some time
That said, the battle system is spectacular
Thankfully, since everyone has access to them, it should balance out