mtg you may play land cards from your graveyard Ramunap Excavator (Prerelease) (Hour of Devastation) | Promo Dredge 3 (If you would draw a card Ramunap Excavator (Ripple Foil)

Then you tap three, one of which is Tangle Wire, so this ends up netting you a lot of tempo if it comes down before they can find permanents to tap other than lands, especially if you have one and two drops that you can tap

In fact, pairing Zirda with Grim Monolith was powerful enough to get it banned in Legacy

Witherbloom Withering Curse This is the card that makes what Witherbloom is trying to do make sense

The biggest takeaway from this should be the value of recurring card draw compared to one-time effects

Rakdos Signet: mana rock

However, it is interesting to see how it got support throughout time, enabling this archetype quite reasonably