It makes sense to release sets of cards that help maintain the health of the format this way since Historic is a digital-only format that consists of, well, whatevers on Arena
// Shinryu, Transcendent Rival Legendary Creature Dragon 8/8 Flying As this creature transforms into Shinryu, choose an opponent
But honestly, that's pretty clunky
Sultai Arisen Much of Sultai Arisen s prestige comes from the Teval, the Balanced Scale, but the 99s no slouch
Number 6 Language English Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Pioneer, Standard Rulings (1/24/2025) The creature that entered and caused the ability to trigger will also get a +1/+1 counter, provided it's still on the battlefield when the ability resolves.
We were thinking: Should it be on the original new plane or should it be an existing plane