Wizards of the Coast this week announced what many had expected for some time now: Pioneer is coming to Magic: The Gathering Arena later this week. On Saturday, May 10, the Explorer format will bow out and Pioneer will take its place with the introduction of 11 new cards.
We knew that, one day, we would retire Explorer and replace it with Pioneer, a change we would implement once we got all the relevant cards onto MTG Arena. We have closely watching Pioneer and believe that we have achieved this goal. Out of 411 distinct competitive Magic Online decklists played in March, Explorer was only missing seven cards found in those decklists.
Pioneer launched back in late 2019, about a year after MTG Arena launched in beta. Whereas the Modern format includes cards from Eighth Edition onwards, Pioneer limits itself to sets released since Return to Ravnica. Wizards launched Explorer in 2022 as a digital-only format that was very similar to Pioneer but lacked many of the key cards of the latter format. The gap narrowed gradually with new set releases, including the recent Pioneer Masters.
To be accurate, it should be noted that Arena’s Pioneer format does not include all Pioneer-standard cards – There are a number missing (about 2,000 in fact) but none of these appear in more competitive decks. According to WOTC, they did ask their Arena Championship players about any missing cards and were told by most that there were no “major misses.”
The new cards to be launched to turn Explorer into Pioneer are:
- Battle at the Bridge
- Borborygmos Enraged
- Encroaching Wastes
- Kazuul’s Toll Collector
- Magmatic Insight
- Nissa’s Defeat
- Rakdos Charm
- Roast
- Sanctum of Ugin
- Triton Shorestalker
- Warping Wail



I’m all for this move. It eliminates a digital-only format and improves parity between digital and physical formats. While the absence of some 2,000 cards is bound to upset some deck brewers,
I don’t play a lot of Explorer on MTG Arena but have been steadily playing more and do have a ExplorerPioneer version of my Orzhov Cleric deck in Arena. There are about 40 Cleric cards in those cards still missing in Arena but I’m not sure that they would materially impact my deck.
Read more: Announcing Pioneer
Is May 10th marked on your calendars? Drop us a note if it is.



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