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Equivalent cards in colorless mana ramp (artifacts):
1. Grim Monolith – Similar untap ability, produces colorless mana.
2. Thran Dynamo – Costs 4, taps for 3 colorless mana.
3. Mana Vault – Cheaper, taps for colorless mana, but damages you if not untapped.
Reason: These cards are colorless artifacts that ramp mana and have similar restrict/untap downsides.
| Color: |  |
| Identifies: | |
| Cost: |
 |
| Rarity: | Rare |
| Converted Cost: | 2 |
| Power/Toughness: | / |
| Types: | |
| SubTypes: | |
| Languages: | 
      |
| EDH Bracket Attr: | Game Changer |
| Layout: | Normal |
| Rank: | |
| Saltiness: |
| Seller | Price |
|---|---|
| Tcgplayer | 18.91 USD |
| Cardmarket | 11.95 EUR |
| Cardkingdom | 22.99 USD |
| Cardsphere | 17.74 USD |
: Add .
: Untap this artifact. | Color: | |
| Identifies: | |
| Cost: |
 |
| Rarity: | Mythic |
| Converted Cost: | 1 |
| Power/Toughness: | / |
| Types: | |
| SubTypes: | |
| Languages: |
 |
| EDH Bracket Attr: | Game Changer |
| Layout: | Normal |
| Rank: | |
| Saltiness: |
| Seller | Price |
|---|---|
| Tcgplayer | 1105.48 USD |
. If you do, untap this artifact.
At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you.
: Add . | Color: | |
| Identifies: | |
| Cost: |
|
| Rarity: | Uncommon |
| Converted Cost: | 4 |
| Power/Toughness: | / |
| Types: | |
| SubTypes: | |
| Languages: |
 |
| Layout: | Normal |
| Rank: | |
| Saltiness: |
| Seller | Price |
|---|---|
| Tcgplayer | 4.06 USD / 78.55 USD |
| Cardmarket | 2.48 EUR / 43.99 EUR |
| Cardkingdom | 5.49 USD / 69.99 USD |
| Cardsphere | 3.65 USD |
: Add . | Color: | |
| Identifies: | |
| Cost: |
|
| Rarity: | Rare |
| Converted Cost: | 2 |
| Power/Toughness: | / |
| Types: | |
| SubTypes: | |
| Languages: |
|
| EDH Bracket Attr: | Game Changer |
| Layout: | Normal |
| Rank: | |
| Saltiness: |
| Seller | Price |
|---|---|
| Tcgplayer | 18.91 USD |
| Cardmarket | 11.95 EUR |
| Cardkingdom | 22.99 USD |
| Cardsphere | 17.74 USD |
: Add .
: Untap this artifact. | Color: | |
| Identifies: | |
| Cost: |
|
| Rarity: | Mythic |
| Converted Cost: | 1 |
| Power/Toughness: | / |
| Types: | |
| SubTypes: | |
| Languages: |
|
| EDH Bracket Attr: | Game Changer |
| Layout: | Normal |
| Rank: | |
| Saltiness: |
| Seller | Price |
|---|---|
| Tcgplayer | 1105.48 USD |
. If you do, untap this artifact.
At the beginning of your draw step, if this artifact is tapped, it deals 1 damage to you.
: Add . | Color: | |
| Identifies: | |
| Cost: |
|
| Rarity: | Uncommon |
| Converted Cost: | 4 |
| Power/Toughness: | / |
| Types: | |
| SubTypes: | |
| Languages: |
|
| Layout: | Normal |
| Rank: | |
| Saltiness: |
| Seller | Price |
|---|---|
| Tcgplayer | 4.06 USD / 78.55 USD |
| Cardmarket | 2.48 EUR / 43.99 EUR |
| Cardkingdom | 5.49 USD / 69.99 USD |
| Cardsphere | 3.65 USD |
: Add . 
