M:tG card similarity search
| Name | Mana | Type | Text | 
|---|---|---|---|
| Patriar's Seal | 3 | Artifact | {T}: Add one mana of any color. {1}, {T}: Untap target legendary creature you control. | 
| Hall of Heliod's Generosity | Legendary Land | {T}: Add {C}. {1}{W}, {T}: Put target enchantment card from your graveyard on top of your library. | |
| Conduit of Emrakul | Creature — Eldrazi Werewolf | Whenever Conduit of Emrakul attacks, add {C}{C} at the beginning of your next main phase this turn. 5/4 | |
| Novijen, Heart of Progress | Land | {T}: Add {C}. {G}{U}, {T}: Put a +1/+1 counter on each creature that entered the battlefield this turn. | |
| Krosa | Plane — Dominaria | All creatures get +2/+2. Whenever chaos ensues, you may add {W}{U}{B}{R}{G}. | |
| Pentad Prism | 2 | Artifact | Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) Remove a charge counter from Pentad Prism: Add one mana of any color. | 
| Sylvok Explorer | 1G | Creature — Human Druid | {T}: Add one mana of any color that a land an opponent controls could produce. 1/1 | 
| Nykthos, Shrine to Nyx | Legendary Land | {T}: Add {C}. {2}, {T}: Choose a color. Add an amount of mana of that color equal to your devotion to that color. (Your devotion to a color is the number of mana symbols of that color in the mana costs of permanents you control.) | |
| Hidden Herbalists | 1G | Creature — Human Druid | Revolt — When Hidden Herbalists enters the battlefield, if a permanent you controlled left the battlefield this turn, add {G}{G}. 2/2 | 
| Birchlore Rangers | G | Creature — Elf Druid Ranger | Tap two untapped Elves you control: Add one mana of any color. Morph {G} (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 |