I play Agent of Treachery (this turns first spell). It effect target Fires of Invention for opponent.
After I want play casualties war (this turns second spell) by Fires of Invention.
But I can't cast casualties war by Fires of Invention.

I had used phyrexian metamorph to copy my opponent's commander (atraxa praetors' voice) I then Mutated it using chittering harvester choosing over, I twice attempted to attack my opponent the creature removed itself from combat and advanced through my combat step.

event number 228944064

boil didn't do anything when my opponent played it in a game of modern. I think it was likely caused because I had a leyline of sanctity in play.

Played 4 standard constructed games with a buddy. His deck has 21 lands in a 60 card deck. He has roughly a 1 in 3 chance of drawing a land. However, all 4 games we have played tonight to test it out, he has been land "flooding".

Game event numbers:
228901650
228909210
228911634
228913277

Other issues with yield/pause during in-game play but the flood is the primary concern. The shuffle/draw algorithm seems to have a bug.

My Luminous broodmoth regenerated my mutated creature when it should not have. I had a porcuparrot, prickly marmoset, and dreamtail haron that were all mutated (porcuparrot on top). When he used blood curdle to kill the creature, they all came back with flying counters (even dreamtail haron)

Plague wind artwork is bugged and shows up with lines covering 70%ish of the artwork

1. Memory Crystal is causing costs outside of buyback to be reduced when casting.

2A. Two memory crystal in play.
2B. Cast sprout swarm with buyback.

1. Actual: cast for only one green mana.
2. Expected: should cost 1G

I tried watching replays of my limited match to make video content, but it seems the replay feature is not working with companions, it ignores them and when one gets actually cast it "freezes" the replay (the replay continues running but without any new state of the game being displayed until the end of the game)

1.I cast Dovin's Veto on his Narset, Parter of Veils.
2.My opponent countered my Dovin's Veto with Negate.
3.Actual:It gets countered by Negate.
4.Expected:It is uncounterable.

Vengeful Pharaoh should trigger when YOU take damage, not when YOU deal damage to an opponent. This bug resulted in one of my creatures being buried which effected the play of the game in a substantial way. Vengeful Pharaoh is currently in the main board of my deck and impacted my first game of the first match of the league I joined.

Attack with 1 or more creatures with Vengeful Pharaoh in graveyard
After damage is dealt Vengeful Pharaoh trigger is put on the stack
Trigger must select a creature in play

I dealt a damage with walking ballista on a devoted druid with a -1/-1 counter on it and it didn't die

I dealt a damage with walking ballista on a devoted druid with a -1/-1 counter on it and it didn't die

Completed daily pay 25 blue or black cards, apparently while doing so I also completed another daily quest. The quest reward generated but the the new deck did not. It now says try again in 20 hours. I checked my decks page and had nothing I noticed as new. Could I get todays deck added to my collection as it appears a bug caused me to miss it?

1. When Rielle, the Everwise is in play, using Foil's alternate cast method (discarding an Island and another card) only triggers Rielle to draw you 1 card opposed to 2 like it should.
2. Use alternate cost to cast Foil with Rielle in play.
3. Rielle's trigger draws you 1 card.
4. Rielle's trigger should draw 2 cards.

In between rounds 1 and two i was forced out of magic online. I tried to open magic online again and it was a forced update. I then tried to open magic online on another computer and it too is forcing me to update.

By the time I am able to rejoin tournament i will imagine I will get a round 2 loss. This scheduled update has interrupted tournament play resulting in me being over 10 minutes late to round 2, i nearly had forfeited the game.

1) Cast Pillar of Flame targeting Bloodghast.

2) Expected Bloodghast to go to exile.

3) Opponent fetched a land with Wooded Foothills and Bloodghast
returned to the battlefield with the landfall ability.

4) Expected it to die and be exiled from Pillar of Flame.