Extorting Blackjack is a Grand Archive card. Compare listings from Singapore Grand Archive sellers on CardJio, then jio them on WhatsApp.
Type
Attack
Subtype
Guardian / Sword
Class
Guardian
Element
Umbra
Reserve cost
2
Power
2
Card Text
As long as the total reserve cost among your omens is exactly 21, Extorting Blackjack gets +10POWER.
[Class Bonus] On Attack: Recover X, where X is the amount of omens you have with different costs.