>>13265340>I also thought about addign something like +200 atk for fire monsters" or something similar but it felt too strong and too tempting to stick onto non-stone-evos.maybe try adding an effect to the stones like "if this card is destroyed by the effect of a spell/trap or monster card controlled by your opponent, return this card to your deck instead of sending it to the graveyard. Your deck is then shuffled."
