(2) Stronger cards
The only effort needed to stop this thing is by using any random image, this card, a no sign, and any text at all containing " no u ", "shield", or "card".
THE KIRBY HAS FOUND YOUR SIN UNFORGIVABLE CARD; NULLIFIES ALL CARDS USED AGAINST IT. CANNOT BE OVERPOWERED BY ANY CARD. CANNOT BE USED AGAINST BLOOK(ITS MAKER). CANNOT BE RIPPED, CUT, CENSORED, AND HAS THE POWER OF FLEX PASTE.