Red originally had little in the way of mana acceleration (with the exception of Sisters of the Flame), but over time it appropriated black's production of one-off mana effects ("Ritual)" with cards like Skirk Prospector, Seething Song, Braid of Fire and Rite of Flame
The metagame around here hasnt changed much since Worlds 2019, so we have plenty of Ability ReshiZard, PikaRom, Malamar variants, GardEon, and Blacephalon- GX
And before any of you guys with severe autism tells me that they do it in Japan and it looks fine it's a different color silver the lady doth protest too much, methinks
thats especially critical for interactive modal spells
It can combo with cards like Living end and Crashing Drawbridge for a one-turn kill or just be a one-card value engine