Card Interactions don't trigger properly.
I play a very weird deck and some of the interactions don't always seem to trigger properly.
I had two games today that I can recall. One I dropped an uncharted and was not prompted to select a mana type, then it allowed me to play a 2nd mana, but the uncharted remained useless without an undeclared type, leaving me down a card and a mana in the match.
I had another where a bandits talent was not returning cards.

-
Jabberwokie#38536 commented
Dac169, correct
I phrased poorly.
And i reviewed and the bandits was fine that game. I had thought my own low hand would trigger, but as you and ghe card state, only opponant.
I had another issue with kellan the fae-blooded and lost jite vs shrike force and lost jite, didnt seem to doyble trigger.
The two attack phases and mussing mana were bigger issues for sure.
-
DAC169#34537 commented
"I had another where a bandits talent was not returning cards."
Bandit's Talent doesn't "return" any cards at all.
Level 1 makes each opponent discard.
Level 2 makes opponents lose life if they don't keep enough cards in their hand.
Level 3 draws you a card at the start of your turn ONLY IF you have any opponents who don't have enough cards in your hand.
At no point does Bandit's Talent return cards from the graveyard to your hand or the battlefield, nor does it return cards from the battlefield to your hand.