Timer
The timer is very inconsistent. My opponent will have all the time in the world and not get a timer. Then when it is my turn to respond, I immediately get a timer. I can hit resolve in under 2 seconds, it flips back to my opponent to respond (with no timer), 15 seconds later back to me with timer still running and this continues until everything is resolved. Conversely, I will take an extended turn, playing a spell or ability every 5 seconds or less, and get a timer. In addition, the timer continues to run even during game lag. I eventually run out of time even though I quickly make another play after the previous resolves. I have even lost spells on the stack because the timer moved me to the next phase without resolving the stack. I have also ended in a draw due to my opponent running out of time with their stack still resolving.