The Phyrexian assault on the Magic: The Gathering Multiverse is already underway, with the release of Dominaria United in MTG Arena as well as additional content for the Standard-legal set.
Wizards of the Coast announced dates for September events that support the Standard-legal set, as well as an Ajani and Sleeper Agent avatar that players may try out for a limited time following the digital release. MTG Arena Championship begins in September.
According to WotC, here are the MTG Arena notes for September.
Ajani limited-time MTG Arena avatar
From September 8 to 15, MTG Arena members may get a free Ajani and Sleeper Agent avatar. Changing the avatar is done via the Profile tab. Once the limited-time offer is over, the Ajani and Sleeper Agent avatar will be available for purchase within the store.
Standard MTG Arena Metagame Challenge
The Standard Metagame Challenge, like all new Standard-legal set releases, will take place from September 9 to 12. Featuring a format with the addition of DMU and four sets rotating out of Standard, the event will take place from September 9 to 12.
The MTG Arena Metagame Challenge is a best-of-three format, with one loss and up to seven victories, rewarded players with up to 5,000 gold and 30 DMU booster packs. There is a fee of 2,000 gold or 400 gems to participate in the event.
Sleeper Agent MTG Arena event
Starting on September 15, MTG Arena players may participate in the Sleeper Agent event, which rewards stained-glass card-style rewards. The format is Singleton with an emblem and a entry fee of either 2,000 gold or 400 gems. Players may earn up to four wins or two losses within a best-of-one format.
At the beginning of their turn, players may choose a creature card at random in their hand. That creature perpetually becomes a Phyrexian in addition to its other types. If a Phyrexian is a player, he or she receives two Poison counters.
A total of 22 MTG cards are barred from participating in the event, including lands like Field of the Dead and spells like Demonic Tutor.
Here are some of the most frequently forbidden cards from the MTG Arena Sleeper Agent event:
- Agent of Treachery
- Dark Ritual
- Demonic Tutor
- Field of the Dead
- Lightning Bolt
- Lutri, the Spellchaser
- Memory Lapse
- Natural Order
- Nexus of Fate
- Oko, Thief of Crowns
- Once Upon a Time
- Swords to Plowshares
- Tainted Pact
- Thassas Oracle
- Tibalts Trickery
- Time Warp
- Uro, Titan of Natures Wrath
- Veil of Summer
- Wilderness Reclamation
Rewards for the event range from zero to four wins, with players earning up to 2,500 gold and three stained-glass card styles.
Here are a list of all the card styles that players may earn.
- Sheoldred, the Apocalypse
- Vohar, Vodalian Desecrator
- Rona, Sheoldreds Faithful
- Elas il-Kor, Sadistic Pilgrim
- Raff, Weatherlight Stalwart
- Balmor, Battlemage Captain
- Squee, Dubious Monarch
- Shanna, Purifying Blade
- Zur, Eternal Schemer
- Ertai Resurrected
- Jodah, the Unifier
- Radha, Coalition Warlord
- Stenn, Paranoid Partisan
- Aron, Benalias Ruin
- Baird, Argivian Recruiter
Other MTG Arena September events
DMU is continuing to be organized play, with three Qualifier Play-In events and an Arena Open scheduled for the first month of September. Also taking place is the first MTG Arena Championship, as well as an Arena Open. And Midweek Magic features a wide variety of events, from Brawl to Artisan.
- Standard Metagame Challenge: Sept. 9 to 12
- Sleeper Agents event: Sept. 15 to 24
- DMU Constructed: Sept. 16 to 19
- SNC: Sept. 2 to 15
- DMU: Sept. 16 to 30
- MID: Sept. 30 to Oct. 14
- Artisan: Sept. 13 to 15
- Brawl Showcase: Sept. 20 to 22
- Historic: Sept. 27 to 29
- On the Edge: Oct. 4 to 6
- DMU Phantom Sealed best-of-one Qualifier Play-In: Sept. 10 to 11
- DMU Phantom Sealed best-of-three Qualifier Play-In: Sept. 16 to 17
- Bonus Play-In: Sept. 24 to 26 (details coming soon)
- DMU Phantom Sealed Qualifier Weekend: Sept. 17 to 18
- Arena Championship: Sept. 24 to 25 (details coming soon)
- DMU Sealed Arena Open: Oct. 1 to 2
September MTG Arena Ranked season rewards
The September MTG Arena Ranked season will run from August 31 to September 30.
- Bronze: One Dominaria United booster pack
- Silver: One Dominarai United booster pack and 500 gold
- Gold: Two Dominaria United booster packs, 1,000 gold, and a Cut Down card style
- Platinum: Three Dominaria United booster packs, 1,000 gold, a Cut Down, and Thran Portal card style
- Diamond: Four Dominaria United booster packs, 1,000 gold, a Cut Down, and Thran Portal card style
- Mythic: Five Dominaria United booster packs, 1,000 gold, a Cut Down, and Thran Portal card style