Played two games with a green/black deck where I tried to use Bitter Triumph the first time and Foolish Fate the second time. Both times the card was played it would pause to allow for the opponent to respond, then it would put the card I played in my graveyard, acting as if the action had been done. Both times the opponent's creature or permanent was not removed, but the negative effects would happen (I would lose health from Bitter Triumph for instance). When using Bitter Triumph the counters were removed from one of the creatures, but their strength/toughness didn't change, the counter symbol was just removed. Additionally when using Bitter Triumph the opponent had an enchantment (Innkeeper's Talent) that was giving their creatures Ward (1). However none of the cards displayed that they were warded, and I had the mana to pay the ward cost, but my card just went to the graveyard and no action occurred.

There was no counterspell card of any sort cast against me, no cards of the opponents was being moved to the grave, and no opportunity to pay any ward costs were happening.