Mastermind Scheme is a Grand Archive card. Compare listings from Singapore Grand Archive sellers on CardJio, then jio them on WhatsApp.
Type
Action
Subtype
Assassin / Skill
Class
Assassin
Element
Norm
Reserve cost
6
Speed
Slow
Card Text
[Class Bonus] Efficiency (This card costs LV less to activate. LV refers to your champion's level.)
Double the amount of preparation counters on your champion. Then if there are eight or more preparation counters on your champion, you gain agility 3 for this turn.