Cheapest priced copy (The List): $1.49 at Card Kingdom, near mint, their price list as of .
Gaddock Teeg 
Legendary Creature — Kithkin Advisor · 2/2 · Rare · Lorwyn · #248
Noncreature spells with mana value 4 or greater can't be cast.
Noncreature spells with {X} in their mana costs can't be cast.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $1.49 to $37.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Judge Gift Cards 2017 | 3 | Rare | — | $20.99 |
| Lorwyn | 248 | Rare | $4.49 | $37.99 |
| The List | UMA-199 | Rare | $1.49 | — |
| Ultimate Box Topper | U21 | Mythic | — | $18.99 |
| Ultimate Masters | 199 | Rare | $1.99 | $6.99 |
2 rulings from Wizards of the Coast
- 1 October 2007If one half of a split card has a mana value of 3 or less and doesn't have an {X} in its mana cost, Gaddock Teeg lets you cast that half.
- 7 December 2018A spell's mana value is determined only by its mana cost. Alternative costs (including casting a spell "without paying its mana cost"), additional costs, and cost reductions don't affect a spell's mana value.