mtg cards that reduce casting cost Would you consider reduction as "ramp"? Curios how these reduce cost

Nucklavee When Nucklavee enters the battlefield, it brings double the value back to your hand by returning a red sorcery and a blue instant, which makes it especially strong in decks that fill the graveyard naturally and allows you to repurpose spells such as Electrolyze and Wrenn's Resolve without losing momentum

Wizards of the Coast has given us the following schedule for the sets role-out (with our presale thrown in there for good measure)

Bojuka Bog is another option in black, though it generally lacks the ability to exile at instant speed, and it only hits one player

Ive actually ordered a backup playset to lend to whoever needs them