Selvala, Heart of the Wildsramp$11.58A powerful mana engine in green that can generate large amounts of mana for big plays, similar to Rosheen's role of accelerating into huge X spells and commanders.
Magus of the Candelabraramp$0.75Provides scalable mana utility by untapping lands, supporting explosive turns and big mana payoffs like Rosheen does for X-cost strategies.
Shaman of Forgotten Waysramp$6.48Another creature-based mana source in Gruul colors that can help power out large spells and eventually acts as a finisher.
Ashaya, Soul of the Wildramp$27.52Turns creatures into mana-rich resources and enables explosive turns in creature-heavy green-red shells, functioning as a big mana enabler.
Nykthos, Shrine to Nyxramp$54.37A color-intensive mana land that can generate huge bursts of mana for large spells, filling a similar big-mana role in decks built around devotion.
Zhur-Taa Ancientramp$0.38Doubles mana production for both players, giving the kind of explosive resource boost that supports oversized X spells and splashy turns.
Heartless Hidetsuguutility$2.82Not a ramp card itself, but it is a classic big-mana/huge-mana payoff style commander-adjacent red legend that fits into explosive damage-based strategies alongside Rosheen.
Xenagos, the Revelerramp$2.60Generates large bursts of mana in red-green decks and excels at powering out huge spells, overlapping strongly with Rosheen's explosive mana role.