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 |
|---|---|---|---|
| Icy Prison | UU | Enchantment | When Icy Prison enters the battlefield, exile target creature. At the beginning of your upkeep, sacrifice Icy Prison unless any player pays {3}. When Icy Prison leaves the battlefield, return the exiled card to the battlefield under its owner's control. |
| Root Greevil | 3G | Creature — Beast | {2}{G}, {T}, Sacrifice Root Greevil: Destroy all enchantments of the color of your choice. 2/3 |
| Gutwrencher Oni | 3BB | Creature — Demon Spirit | Trample At the beginning of your upkeep, discard a card if you don't control an Ogre. 5/4 |
| Prismatic Omen | 1G | Enchantment | Lands you control are every basic land type in addition to their other types. |
| Grave Peril | 1B | Enchantment | When a nonblack creature enters the battlefield, sacrifice Grave Peril. If you do, destroy that creature. |
| Door to Nothingness | 5 | Artifact | Door to Nothingness enters the battlefield tapped. {W}{W}{U}{U}{B}{B}{R}{R}{G}{G}, {T}, Sacrifice Door to Nothingness: Target player loses the game. |
| Blanket of Night | 1BB | Enchantment | Each land is a Swamp in addition to its other land types. |
| Urborg, Tomb of Yawgmoth | Legendary Land | Each land is a Swamp in addition to its other land types. | |
| Slayer's Bounty | W | Legendary Artifact — Clue | When Slayer's Bounty enters the battlefield, look at the creature cards in target opponent's hand. Whenever you sacrifice Slayer's Bounty or another Clue, draft a card from Slayer's Bounty's spellbook. {2}, Sacrifice Slayer's Bounty: Draw a card. |
| Forgotten Harvest | 1G | Enchantment | At the beginning of your upkeep, you may exile a land card from your graveyard. If you do, put a +1/+1 counter on target creature. |