Helles Shield (D-BT02A-EB03/0029EN) (D-BT02A)

You may only cast this card during an attack on your opponent's turn and there is an Executioners on your field.
[Cast Cost] [Pay 1 gauge]
[Counter] Nullify that attack. If there are 10 or more cards in your drop zone, put the top two cards of your deck into the gauge and this card cannot be nullified. Then, if there are 15 or more, deal 1 damage to your opponent!