Bug reports attached. My computer freezes and lags during gameplay, 80% of the time leading to the game crashing where it glitches my display and I must reboot the computer to return to normal.
Computer fully patched, reinstalled game, crashing still occurs multiple times per game play (only crashes during game play, no other activities within the client)

Model Name: iMac
Model Identifier: iMac20,2
Processor Name: 10-Core Intel Core i9
Processor Speed: 3.6 GHz
Number of Processors: 1
Total Number of Cores: 10
L2 Cache (per Core): 256 KB
L3 Cache: 20 MB
Hyper-Threading Technology: Enabled
Memory: 128 GB
System Firmware Version: 1731.120.10.0.0 (iBridge: 19.16.15071.0.0,0)
OS Loader Version: 540.120.3~6

AMD Radeon Pro 5700 XT:

Chipset Model: AMD Radeon Pro 5700 XT
Type: GPU
Bus: PCIe
PCIe Lane Width: x16
VRAM (Total): 16 GB
Vendor: AMD (0x1002)
Device ID: 0x7319
Revision ID: 0x0040
ROM Revision: 113-D1820Q-231
VBIOS Version: 113-D182A2XT-013
Option ROM Version: 113-D182A2XT-013
EFI Driver Version: 01.01.231
Metal Family: Supported, Metal GPUFamily macOS 2
Displays:
iMac:
Display Type: Built-In Retina LCD
Resolution: Retina 5K (5120 x 2880)
Framebuffer Depth: 30-Bit Color (ARGB2101010)
Main Display: Yes

This is happening to me too. I played lots during Kaldheim and Strixhaven with no issues. Took a break during the two Innistrad sets. Came back for Kamigawa and there are often days I give up because I can’t finish a single game (after half a dozen tries).

It crashes during games and when building decks.

About 10% of the time, it crashes so hard my computer reboots.

Same computer (2015 MacBook, 16GB RAM, running Monterrey 12.0).

So frustrating.

Hello,

It sounds like you may need some more troubleshooting advice, please submit at: https://mtgarena-support.wizards.com/hc/en-us/requests/new and select 'Technical Troubleshooting'.

Thanks!

I have a crashing issue on my iMac, and sometimes it just continues to crash after every reopen, and there doesn't seem to be any pattern as to why or when it crashes...

I wish it was ONLY 3 times a day.