MTG Salvation

Okay, I'm pretty certain Damping Sphere shuts off the extra mana from cards like Wild Growth and Utopia Sprawl. I just want to double check from the judges. Thanks in advance!

EDIT: Forgot card tags.

Define "cards like Wild Growth and Utopia Sprawl".

Damping Sphere doesn't actually shut off the mana from the cards Wild Growth or Utopia Sprawl.

I'm building a sideboard for my mono green legacy Winter Orb + Root Maze deck. I'm wanting to sb against stompy decks and in particular Eldrazi Stompy. My deck runs a full set of both Utopia Sprawls and Wild Growths. I know Damping Sphere shuts down their Eldrazi Temples, Ancient Tombs and City of Traitors, but does it shut off my enchanted lands?

Since Wild Growth and Utopia Sprawl themselves produce the mana, through a triggered mana ability, Damping Sphere does not detect them. The enchanted land "is tapped for" whatever its ability produces, and those cards don't change what the land produces, they themselves produce mana when the land does.

106.11. To “tap [a permanent] for mana” is to activate a mana ability of that permanent that includes the {T} symbol in its activation cost. See rule 605, “Mana Abilities.”

106.11b A replacement effect that applies if a permanent “is tapped for mana” or tapped for mana of a specific type and/or amount modifies the mana production event while such an ability is resolving and producing mana or the specified type and/or amount of mana.

Awesome!! This is good news! Thank you Horseshoe_Hermit!