1. Token is created by casting a spell with Saheeli, Sublime Artificer
2. Thing in the ice is played
3. Saheeli transforms token into copy of thing in the ice with 0 counters.
4. Cast serum visions expecting thing in the ice copy to transform since it has 0 counters
5. Nothing happens, thing in the ice does not flip

If The Gitrog Monster is on the battlefield and the controlling player discards multiple lands to handsize during the cleanup step, The Gitrog Monster's triggered ability triggers multiple times (separately for each land), whereas it should trigger only once because all the lands are discarded at the same time.

Thank you for all you do to make Magic great! We appreciate you.

I used pyromancer's googles to cast temporal mastery and it didn't copy the spell. Not having the extra turn cost me the match.

Cast Mizzix's Mastery on Cut/Ribbons, didn't let me play the card at all after exiling it. Didn't get to kill a Shriekmaw, lost a planeswalker because of it, another draft ruined by a card not working. Really not cool.

I played Infernal Darkness. Opponent had Zendikar Resurgent in play already. I expected that the opponent would only be able to tap for black mana, however they were able to tap for red and green mana in addition to generating black mana. I was under the impression that Infernal Darkness would only allow the opponent to generate black mana.

I have cast a kicked Grab the Reins on Precursor Golem, targeting the Swans for the damage dealing part of Grab the Reins. When my spell went on the stack, the Precursor Golem failed to trigger to copy Grab the Reins for the Golem tokens, which were all legal targets. Due to the Golem tokens thus still being on board, I proceeded to lose the game on the turn.

-Shaman of Forgotten Ways in play
-Cast Nyxbloom Ancient
-Tap Shaman, choose what mana to be produced, does not produce 3x mana

This seems to be an issue with Nyxbloom interacting with "alternate" mana production

when I tap Bloom tender for 3 mana it would not allow me to use it for wildborn preservers X ability to add counters

Mindshrieker's activated ability hit commit to memory but instead of giving plus 10/10 it did +0/0 and I lost thef game with my opponent at 10 life

aminatou augury bugged. When you cast it you choose and land adn then it only lets you choose 1 card to cast and then the ability to cast more cards goes away. I cast the card in 2 different matches and it did the same thing both times.

Glory is bugged. It asks to choose a colour when activated but does not show any options to choose from.

1. Activate Cascading Cataracts' last ability with a Damping Sphere on the battlefield.
2. Actual: 5 colored mana is produced.
3. Expected: {C} is produced.

https://www.youtube.com/watch?v=7gcH_pzvH30&t=30m30s is a timestamped replay of a SaffronOlive stream showing the interaction in question.

See the Truth is incorrectly resolving when cast as a copy of a card from exile:
1. Trigger Wildfire Devils, selecting yourself as the random target, with See the Truth in your graveyard.
2. Exile See the Truth with the trigger, copy it, and cast the copy.
3. Actual: See the Truth puts 1 card in hand.
4. Expected: See the Truth puts 3 cards in hand, because the copy was cast from exile.

Should have taken 10 damage (which would have been lethal) but instead my opponent took nothing. It seems to be a bug, if you look at our chat log even my opponent agreed.

My MTGO username is Dwayenbank

Iceberg Cancrix in MH1 supreme draft was not milling my opponent for any cards when they only had 1 card remaining in deck - it still should have been milling the final card regardless due to doing as much of the ability as it can.

1. Have Iceberg Cancrix
2. Play Winter's Rest (with opponent having 1 card remaining in deck)
3. Put Cancrix trigger on the stack
4. Expected - resolve trigger, mill final card.
5. Actual - resolve trigger with no effect, opponent draws final card and doesn't lose to decking as expected

algorithm with shuffling a deck and not not getting land in a deck of 60 with 24 land! something is wrong here

1. when activated, soul conduit's ability does not exchange life totals.
2. Soul conduit was played, 6 mana was paid to activate its ability, myself and the other player were targeted, the ability went on the stack and resolved. (nothing in play gave a player hexproof or should have stopped the ability in any way)
3. Actual: Life totals did not change.
4. Expected: my life total and my opponent's life total exchange with each other.