Weiss Schwarz Rurouni Kenshin Oniwaban Group Guard, Shikijo RKN/S115-E082 Uuncommon

[AUTO] When this card is placed on the stage from your hand, this card gets +X power until end of turn. X is equal to the number of characters your opponent has ×1000.
[AUTO] [(1) Put this card into your memory] When your other "Oniwaban Group" character is frontal attacked, you may pay the cost. If you do, return that character to your hand.