Cheapest priced copy (Lorwyn): $0.35 at Card Kingdom, near mint, their price list as of .
Ceaseless Searblades 
Creature — Elemental Warrior · 2/4 · Uncommon · Lorwyn · #158
Whenever you activate an ability of an Elemental, this creature gets +1/+0 until end of turn.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Lorwyn | 158 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 1 October 2007This triggers whenever you activate an activated ability of an Elemental permanent, but not when you activate an activated ability of an Elemental source that’s not on the battlefield.