M:tG card similarity search
| Name | Mana | Type | Text |
|---|---|---|---|
| Rofellos, Llanowar Emissary | GG | Legendary Creature — Elf Druid | {T}: Add {G} for each Forest you control. 2/1 |
| Mana Reflection | 4GG | Enchantment | If you tap a permanent for mana, it produces twice as much of that mana instead. |
| King Narfi's Betrayal | 1UB | Enchantment — Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.) I — Each player mills four cards. Then you may exile a creature or planeswalker card from each graveyard. II, III — Until end of turn, you may cast spells from among cards exiled with King Narfi's Betrayal, and you may spend mana as though it were mana of any color to cast those spells. |
| Untaidake, the Cloud Keeper | Legendary Land | Untaidake, the Cloud Keeper enters the battlefield tapped. {T}, Pay 2 life: Add {C}{C}. Spend this mana only to cast legendary spells. | |
| Author of Shadows | 4B | Creature — Shade Warlock | When Author of Shadows enters the battlefield, exile all opponents' graveyards. Choose a nonland card exiled this way. You may cast that card for as long as it remains exiled, and you may spend mana as though it were mana of any color to cast that spell. 3/3 |
| Goldspan Dragon | 3RR | Creature — Dragon | Flying, haste Whenever Goldspan Dragon attacks or becomes the target of a spell, create a Treasure token. Treasures you control have "{T}, Sacrifice this artifact: Add two mana of any one color." 4/4 |
| Tainted Field | Land | {T}: Add {C}. {T}: Add {W} or {B}. Activate only if you control a Swamp. | |
| Tainted Isle | Land | {T}: Add {C}. {T}: Add {U} or {B}. Activate only if you control a Swamp. | |
| Tainted Peak | Land | {T}: Add {C}. {T}: Add {B} or {R}. Activate only if you control a Swamp. | |
| Tainted Wood | Land | {T}: Add {C}. {T}: Add {B} or {G}. Activate only if you control a Swamp. |