Hello
I played yesterday a game for the Qualification of Manatrader Series in practice mode.
I play Underworld Breach with Thassa Oracle.
The bug was that cards with mana cost bigger than 0 costed more mana than it should be when I cast from the graveyard.
In Game 2 #818934768 I did the combo my opponent was dead "on board" as I had also Terferi Hero in play. When I wanted to cast Thassa's Oracle with 3 blue mana floating the game told me I need 4 blue mana. I asked my opponent for fair play to give up. After 8 Minutes or so he conceded the game.
(I alos checked Iteration would have costed 2 more red mana than I had)
In Game 3 #818936190 which was very hard because I had not much clock left I managed to get to the combo with approx. 4:30 left on the clock.
As I wanted to cast Grinding Station from the Graveyard the game told me that this costs 4 and not 2 mana. My opponent, who was on Hammertime, had only one colorless mana open with one card in hand. So he was again dead "on board". I asked my opponent again for fair play to give up, but he got the win by timing me out.
If needed I have screenshots of everything.
As this was a qualification game I asked Manatraders to change the result, but they told me that it has to be changed in MTGO.
So please change the result of this practice game as it was actually not just practice (Event #253957010)