M:tG card similarity search
2G · Artifact
{T}: Add one mana of any color. When you spend this mana to cast a Dragon creature spell, it enters the battlefield with an additional +1/+1 counter on it and gains hexproof until your next turn.
| Name | Mana | Type | Text | 
|---|---|---|---|
| Seasonal Ritual | G | Sorcery — Adventure | Add one mana of any color. (Then exile this card. You may cast the creature later from exile.) | 
| Opaline Unicorn | 3 | Artifact Creature — Unicorn | {T}: Add one mana of any color. 1/2 | 
| Orochi Leafcaller | G | Creature — Snake Shaman | {G}: Add one mana of any color. 1/1 | 
| Prismite | 2 | Artifact Creature — Golem | {2}: Add one mana of any color. 2/1 | 
| Darksteel Ingot | 3 | Artifact | Indestructible (Effects that say "destroy" don't destroy this artifact.) {T}: Add one mana of any color. | 
| Intrepid Stablemaster | 1G | Creature — Human Scout | Reach {T}: Add {G}. {T}: Add two mana of any one color. Spend this mana only to cast Mount or Vehicle spells. 2/2 | 
| Underdome | Land | {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to pay Un-costs. | |
| Gleemox | 0 | Artifact | {T}: Add one mana of any color. This card is banned. | 
| Gallifrey Council Chamber | Legendary Land | When Gallifrey Council Chamber enters the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.) {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a Time Lord or Alien spell or activate an ability of a Time Lord or Alien. | |
| Mystic Skull | 2 | Artifact | {1}, {T}: Add one mana of any color. {5}, {T}: Transform Mystic Skull. |