Today I played 2 duels in ranked with Sylvans and lost, both by deck out. In both situations, I had Jar Of Avarice set.
I would set Avarice with the intention of waiting for the activation prompt during my opponents' End Phase. Unfortunately, no such prompt ever showed, and I lost immediately after.
Because of this bug, I am now on the verge of ranking down. Please fix this asap.
The reason is because that card makes you draw, and you can't draw with no cards left in your deck. It doesn't take into account that you will have cards in your deck at that point. I don't know if that is intended or not, but for now at least, just use it with one card left.
turn your toggle on
This is NOT Konami's site. Why can't people get that? Use the Help section in the game to report issues. ALSO, I don't believe it's a bug. You CANNOT active Jar of Avarice when you have no cards in your deck.