Interesting card and mechanism. I bet this, if implemented in game, would generate massive amount of discussion like Hax Shields do now.
My only concern in this card is using it with Crusader. Would it be possible to get those doubled damages =12+8|20+14 with that 2 card combo? Not that it would be totally OP, but it would only cost 10 .
Yes, you could get double damage but with a 30% | 35% chance you're paying 3 Other to get a weapon that can deal 5.2 damage | 9.45 damage as Essence stated earlier, which seems okay considering the damage ratio for Short Bow and Gavel and Short Sword: Ratio for Seijaku
Unupgraded 5.2/3 = 1.73 damage for 1 quantum.
Upgraded 9.45/3 = 3.15 damage for 1 quantum.
Ratio for Short Bow/Gavel (W/Mark damage)
Unupgraded 4/2 = 2 damage for 1 quantum.
Upgraded 7/2 = 3.5 damage for 1 quantum.
Ratio for Short Sword
Unupgraded 3/1 = 3 damage for 1 quantum.
Upgraded 6/1 = 6 damage for 1 quantum.Short Sword is still overall the most cost efficient, but it's often used in rush decks that don't have the mark for Short Bow or Gavel. Seijaku has the best ability out of the three for animation and sadering but as a result it does slightly less damage and works in different decks