Scute Swarm is causing excessive lag on the game and when I used it and my oppoenet used it, it resulted in my turn ending befroe being able to attack for the win and I lost the ability to interact with the game. I try to hold the phase up to sacrifice a food token my opponent targeted to destroy but it never gave me time to resolve it, nor was I able to block the 5 attacking creatures. The audio went all out of sync and the music played, but no sound effects. Please upgrade the software or ban Scute Swarm.

Almost 700 Scute Swarm copies on the opposite side prevented my Ugin's -5. I selected the value for X but the game stucked with the ability on the pile, until it suddenly went to the opponent's turn. He attacked me, I lost. It seems unfair.

After hitting around 700+ Scute Swarms trying to resolve, all game audio breaks and no sound plays, along with the extreme lag. this sound issue persists until restarting the client.

Hi, same idea here.
That combo breaks the fun of the game, way too long too complete. The opponent got 1400 swarm... And mtga declared a draw even if i still have lethal. frustrating. See attachment

I also ran into this issue when putting 978 instances on the stack.

Issue with mutating an Auspicious Starrix onto a Scute Swarm with multiple mutations pulling in lands and causing landfall triggers leads to the game getting stuck.

The client started to slow down by the time it ticked down to resolve #600 or so after the screenshot, and then I (and presumably my opponent) couldn't concede. I had to alt+F4 out of the client and then got stuck waiting to rejoin the match for about 5 minutes after logging back in. It took two more restarts to get back to the main menu.

The game was warning me that the action would result in a draw but there wasn't any way for me to stop it once the triggers started to grow exponentially.

I experienced this same issue just a moment ago. At about 700~ procs queued, the match froze completely. I assumed network gremlines and Alt+F4'd out of the game but I was unable to rejoin the game after a 3 minute wait time. Closing and reopening eventually booted me back to the main screen.

Ignoring how I totally could have won that on my turn, this is also a deck I wanted to make and would like to know it'll function properly.

Set to auto-resolve opponent's triggers of Scute Swarm, lost time outs due to this. Hopefully log helps with this.

It is not a bug, it is functioning properly. When a card is mutated on its abilities check for the card on tops name so your card's ability now reads Landfall — Whenever a land enters the battlefield under your control, create a 1/1 green Insect creature token. If you control six or more lands, create a token that’s a copy of (THIS CARD'S NAME) instead.

During a match I'd just had I mutated a Migratory Greathorn over a Scute Swarm creature card. However in the event that the Scute Swarm's landfall mechanic is triggered it created copies of 3/4 Migratory Greathorn tokens instead of the 1/1 token insects. I assume this must be a mistake seeing as that could very easily be brokenly OP to mutate larger creatures (such as an Auspicious Starrix) and therefore create a massive amount of 6/6 tokens purely through dropping lands onto the field, so I figured I'd report here for clarification. I have attached a screenshot to showcase the bugged tokens described above.