Cheapest priced copy (Foundations Commander): $0.35 at Card Kingdom, near mint, their price list as of .
Dragonlord's Servant 
Creature — Goblin Shaman · 1/3 · Uncommon · Foundations · #536
Dragon spells you cast cost {1} less to cast.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
13 printings · $0.35 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Forgotten Realms Commander | 123 | Uncommon | $0.39 | — |
| Commander 2017 | 135 | Uncommon | $0.39 | — |
| Dragons of Tarkir | 138 | Uncommon | $0.49 | $3.99 |
| Foundations Commander | 152 | Uncommon | $0.35 | — |
| Foundations | 536 | Uncommon | $0.49 | — |
| Iconic Masters | 126 | Common | $0.49 | $0.99 |
| Jumpstart 2022 | 524 | Uncommon | $0.59 | — |
| Foundations Jumpstart | 538 | Uncommon | $0.35 | — |
| Jumpstart | 311 | Uncommon | $0.59 | — |
| Year of the Dragon 2024 | 1 | Rare | — | $0.99 |
| Tarkir Dragonfury | 138 | Uncommon | $0.69 | — |
| Starter Commander Decks | 135 | Uncommon | $0.35 | — |
| Tarkir: Dragonstorm Commander | 210 | Uncommon | $0.35 | — |
6 rulings from Wizards of the Coast
- 25 February 2015The ability can apply to alternative costs to cast a Dragon spell.
- 25 February 2015To determine the total cost of a spell, start with the mana cost or alternative cost (such as a flashback cost) you're paying, add any cost increases, then apply any cost reductions. The mana value of the spell is determined only by its mana cost, no matter what the total cost to cast the spell was.
- 25 February 2015Dragonlord's Servant can't reduce the colored mana requirement of a Dragon spell you cast.
- 25 February 2015If there are any additional costs to cast a Dragon spell, apply those before applying Dragonlord's Servant and any other cost reductions.
- 8 November 2024Dragonlord's Servant's ability doesn't change the mana cost or mana value of any spell. It changes only the total cost you pay to cast Dragon spells.
- 8 November 2024Dragonlord's Servant's ability can't reduce the amount of colored mana you pay for a spell. It reduces only the generic mana component of that spell.