M:tG card similarity search
· Snow Land
{T}: Add {C}. {1}{S}: Until end of turn, Frostwalk Bastion becomes a 2/3 Construct artifact creature. It's still a land. ({S} can be paid with one mana from a snow source.) Whenever Frostwalk Bastion deals combat damage to a creature, tap that creature and it doesn't untap during its controller's next untap step.
| Name | Mana | Type | Text |
|---|---|---|---|
| Barl's Cage | 4 | Artifact | {3}: Target creature doesn't untap during its controller's next untap step. |
| The Blackstaff of Waterdeep | U | Legendary Artifact | You may choose not to untap The Blackstaff of Waterdeep during your untap step. Animate Walking Statue — {1}{U}, {T}: Another target nontoken artifact you control becomes a 4/4 artifact creature for as long as The Blackstaff of Waterdeep remains tapped. Activate only as a sorcery. |
| Unwinding Clock | 4 | Artifact | Untap all artifacts you control during each other player's untap step. |
| Plant Tadpoles | XUU | Sorcery — Adventure | Tap X target creatures. They don't untap during their controllers' next untap steps. (Then exile this card. You may cast the creature later from exile.) |
| Dread Statuary | Land | {T}: Add {C}. {4}: Dread Statuary becomes a 4/2 Golem artifact creature until end of turn. It's still a land. | |
| Mana Vapors | 1U | Sorcery | Lands target player controls don't untap during their next untap step. |
| Dormant Gomazoa | 1UU | Creature — Jellyfish | Flying Dormant Gomazoa enters the battlefield tapped. Dormant Gomazoa doesn't untap during your untap step. Whenever you become the target of a spell, you may untap Dormant Gomazoa. 5/5 |
| Wall of Frost | 1UU | Creature — Wall | Defender Whenever Wall of Frost blocks a creature, that creature doesn't untap during its controller's next untap step. 0/7 |
| Depth Charge Colossus | 9 | Artifact Creature — Dreadnought | Prototype {4}{U}{U} — 6/6 (You may cast this spell with different mana cost, color, and size. It keeps its abilities and types.) Depth Charge Colossus doesn't untap during your untap step. {3}: Untap Depth Charge Colossus. 9/9 |
| Arena of the Ancients | 3 | Artifact | Legendary creatures don't untap during their controllers' untap steps. When Arena of the Ancients enters the battlefield, tap all legendary creatures. |