Turn ended automatically while I still had one action possible
In my position I could sacrifice Buried Treasure to get one mana and then with my 4 lands and this mana I could have paid for its ability from the graveyard. But the game considered that with a land in hand, no active ability in the battleground and my 4 lands I no longer had any possible action and automatically ended all my main phases. I didn't even have the opportunity to sacrifice Buried Treasure except during the combat phase, but if I did it then, I would have lost the mana once I left the combat phase and I wouldn't have been able to pay the 5 mana during my second main phase for its ability from the graveyard.
Aurélien#25982
shared this idea
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Connsulls#10035
commented
This exact same problem just happened to me! It is an important part of the card's synergy with itself that it allows itself to activate it's own ability with just 4 other mana available.
I now feel very wary about having this in my deck because it could fail at the most important time.