M:tG card similarity search
5BB · Creature — Dragon Horror
Flying At the beginning of your end step, exile the top card of each opponent's library. You may play those cards for as long as they remain exiled. If you cast a spell this way, you may spend mana as though it were mana of any color to cast it. Whenever a nonland permanent an opponent owns enters the battlefield under your control, they lose life equal to its mana value. 6/6
| Name | Mana | Type | Text | 
|---|---|---|---|
| Scrying Sheets | Snow Land | {T}: Add {C}. {1}{S}, {T}: Look at the top card of your library. If that card is snow, you may reveal it and put it into your hand. ({S} can be paid with one mana from a snow source.) | |
| Rain of Riches | 3RR | Enchantment | When Rain of Riches enters the battlefield, create two Treasure tokens. The first spell you cast each turn that mana from a Treasure was spent to cast has cascade. (When you cast the spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.) | 
| Skybind | 3WW | Enchantment | Constellation — Whenever Skybind or another enchantment enters the battlefield under your control, exile target nonenchantment permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step. | 
| Velomachus Lorehold | 5RW | Legendary Creature — Elder Dragon | Flying, vigilance, haste Whenever Velomachus Lorehold attacks, look at the top seven cards of your library. You may cast an instant or sorcery spell with mana value less than or equal to Velomachus Lorehold's power from among them without paying its mana cost. Put the rest on the bottom of your library in a random order. 5/5 | 
| Jace, the Mind Sculptor | 2UU | Legendary Planeswalker — Jace | [+2]: Look at the top card of target player's library. You may put that card on the bottom of that player's library. [0]: Draw three cards, then put two cards from your hand on top of your library in any order. [−1]: Return target creature to its owner's hand. [−12]: Exile all cards from target player's library, then that player shuffles their hand into their library. Loyalty 3 | 
| R&D's Secret Lair | Legendary Land | Play cards as written. Ignore all errata. {T}: Add {C}. (This mana is still added to your mana pool.) | |
| Rhystic Cave | Land | {T}: Choose a color. Add one mana of that color unless any player pays {1}. Activate only as an instant. | |
| Goblin Trapfinder | R | Creature — Goblin | When Goblin Trapfinder dies, seek a creature card with mana value 3 or less. That card perpetually gains haste, "This spell costs {1} less to cast," and "At the beginning of your end step, sacrifice this creature." 1/1 | 
| Raven Guild Master | 1UU | Creature — Human Wizard Mutant | Whenever Raven Guild Master deals combat damage to a player, that player exiles the top ten cards of their library. Morph {2}{U}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.) 1/1 | 
| Urborg Syphon-Mage | 2B | Creature — Human Spellshaper | {2}{B}, {T}, Discard a card: Each other player loses 2 life. You gain life equal to the life lost this way. 2/2 |