Cloud Keyramp$2.83A colorless cost reducer that can be set to reduce creature, artifact, or other spell types, filling a similar mana-acceleration role in many decks.
Semblance Anvilramp$6.55Another artifact that reduces the cost of spells you cast, often providing a stronger discount if you can exile the right card type from your hand.
Herald's Hornramp$4.65A 3-mana tribal cost reducer that also provides card advantage, serving a similar function in creature-heavy green strategies.
Urza's Incubatorramp$17.46A classic tribal reducer that lowers the cost of a chosen creature type, similar in purpose to reducing green spell costs in creature-focused decks.
Stonybrook BanneretrampBudget$0.56A small creature-based cost reducer that can make a chosen creature type cheaper, serving the same tempo-acceleration role in tribal builds.
Baral, Chief of Complianceramp$13.68A cost reducer for instants and sorceries that can function like Medallion effects in spell-heavy decks, with added loot utility.
Jace's SanctumrampBudget$0.67Reduces the cost of your instants and sorceries and adds scrying, making it a comparable spell-cost accelerator with extra value.
The Immortal Sunramp$12.05A powerful colorless artifact that reduces the cost of your spells among several other effects, acting as an upgraded but much pricier reducer.