M:tG card similarity search
· Legendary Enchantment
Whenever a land you control is tapped for mana, add an additional one mana of any type that land produced for each other land you control with the same name as it.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Ritual of Subdual | 4GG | Enchantment | Cumulative upkeep {2} (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.) If a land is tapped for mana, it produces colorless mana instead of any other type. | 
| Prismatic Omen | 1G | Enchantment | Lands you control are every basic land type in addition to their other types. | 
| Incubation Druid | 1G | Creature — Elf Druid | {T}: Add one mana of any type that a land you control could produce. If Incubation Druid has a +1/+1 counter on it, add three mana of that type instead. {3}{G}{G}: Adapt 3. (If this creature has no +1/+1 counters on it, put three +1/+1 counters on it.) 0/2 | 
| Terra Eternal | 2W | Enchantment | All lands have indestructible. | 
| Star Compass | 2 | Artifact | Star Compass enters the battlefield tapped. {T}: Add one mana of any color that a basic land you control could produce. | 
| Blighted Burgeoning | 2G | Enchantment — Aura | Enchant land When Blighted Burgeoning enters the battlefield, incubate 2. (Create an Incubator token with two +1/+1 counters on it and "{2}: Transform this artifact." It transforms into a 0/0 Phyrexian artifact creature.) Whenever enchanted land is tapped for mana, its controller adds an additional one mana of any color. | 
| Planar Nexus | Land | Planar Nexus is every nonbasic land type. (Nonbasic land types include Cave, Desert, Gate, Lair, Locus, Mine, Power-Plant, Sphere, Tower, and Urza's.) {T}: Add {C}. {1}, {T}: Add one mana of any color. | |
| Rishadan Port | Land | {T}: Add {C}. {1}, {T}: Tap target land. | |
| Harvester Druid | 1G | Creature — Human Druid | {T}: Add one mana of any color that a land you control could produce. 1/1 | 
| Pale Moon | 1U | Instant | Until end of turn, if a player taps a nonbasic land for mana, it produces colorless mana instead of any other type. |