M:tG card similarity search
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.
| Name | Mana | Type | Text |
|---|---|---|---|
| Tidal Force | 5UUU | Creature — Elemental | At the beginning of each upkeep, you may tap or untap target permanent. 7/7 |
| Thelon's Chant | 1GG | Enchantment | At the beginning of your upkeep, sacrifice Thelon's Chant unless you pay {G}. Whenever a player puts a Swamp onto the battlefield, Thelon's Chant deals 3 damage to that player unless the player puts a -1/-1 counter on a creature they control. |
| Leviathan | 5UUUU | Creature — Leviathan | Trample Leviathan enters the battlefield tapped and doesn't untap during your untap step. At the beginning of your upkeep, you may sacrifice two Islands. If you do, untap Leviathan. Leviathan can't attack unless you sacrifice two Islands. (This cost is paid as attackers are declared.) 10/10 |
| Daring Sleuth | 1U | Creature — Human Rogue | When you sacrifice a Clue, transform Daring Sleuth. 2/1 |
| Cyclone | 2GG | Enchantment | At the beginning of your upkeep, put a wind counter on Cyclone, then sacrifice Cyclone unless you pay {G} for each wind counter on it. If you pay, Cyclone deals damage equal to the number of wind counters on it to each creature and each player. |
| Dredge | B | Instant | Sacrifice a creature or land. Draw a card. |
| Magus of the Mirror | 4BB | Creature — Human Wizard | {T}, Sacrifice Magus of the Mirror: Exchange life totals with target opponent. Activate only during your upkeep. 4/2 |
| Wintermoon Mesa | Land | Wintermoon Mesa enters the battlefield tapped. {T}: Add {C}. {2}, {T}, Sacrifice Wintermoon Mesa: Tap two target lands. | |
| Sheltered Valley | Land | If Sheltered Valley would enter the battlefield, instead sacrifice each other permanent named Sheltered Valley you control, then put Sheltered Valley onto the battlefield. At the beginning of your upkeep, if you control three or fewer lands, you gain 1 life. {T}: Add {C}. | |
| Skittering Horror | 2B | Creature — Phyrexian Horror | When you cast a creature spell, sacrifice Skittering Horror. 4/3 |