M:tG card similarity search
1 · Artifact
At the beginning of your upkeep, you may add {C}{C}. You can't spend this mana to cast spells.
| Name | Mana | Type | Text |
|---|---|---|---|
| Cryptolith Fragment | 3 | Artifact | Cryptolith Fragment enters the battlefield tapped. {T}: Add one mana of any color. Each player loses 1 life. At the beginning of your upkeep, if each player has 10 or less life, transform Cryptolith Fragment. |
| Tecutlan, the Searing Rift | Legendary Land — Cave | (Transforms from Brass's Tunnel-Grinder.) {T}: Add {R}. Whenever you cast a permanent spell using mana produced by Tecutlan, the Searing Rift, discover X, where X is that spell's mana value. | |
| Astrolabe | 3 | Artifact | {1}, {T}, Sacrifice Astrolabe: Add two mana of any one color. Draw a card at the beginning of the next turn's upkeep. |
| Hungry Mist | 2GG | Creature — Elemental | At the beginning of your upkeep, sacrifice Hungry Mist unless you pay {G}{G}. 6/2 |
| Contamination | 2B | Enchantment | At the beginning of your upkeep, sacrifice Contamination unless you sacrifice a creature. If a land is tapped for mana, it produces {B} instead of any other type and amount. |
| Wild Leotau | 2GG | Creature — Cat | At the beginning of your upkeep, sacrifice Wild Leotau unless you pay {G}. 5/4 |
| Peacekeeper | 2W | Creature — Human | At the beginning of your upkeep, sacrifice Peacekeeper unless you pay {1}{W}. Creatures can't attack. 1/1 |
| Mandate of Peace | 1W | Instant | Cast this spell only during combat. Your opponents can't cast spells this turn. End the combat phase. (Remove all attackers and blockers from combat. Exile all spells and abilities from the stack, including this spell.) |
| Damping Sphere | 2 | Artifact | If a land is tapped for two or more mana, it produces {C} instead of any other type and amount. Each spell a player casts costs {1} more to cast for each other spell that player has cast this turn. |
| Deathbonnet Sprout | G | Creature — Fungus | At the beginning of your upkeep, mill a card. Then if there are three or more creature cards in your graveyard, transform Deathbonnet Sprout. (To mill a card, put the top card of your library into your graveyard.) 1/1 |