Cheapest priced copy (Outlaws of Thunder Junction): $0.35 at Card Kingdom, near mint, their price list as of .
Canyon Crab 
Creature — Crab · 0/5 · Uncommon · Outlaws of Thunder Junction · #40
{1}{U}: This creature gets +2/-2 until end of turn.
At the beginning of your end step, if you haven't cast a spell from your hand this turn, draw a card, then discard a card.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction | 40 | Uncommon | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 12 April 2024At the beginning of your end step, Canyon Crab's ability will check to see if you've cast a spell from your hand this turn. If you have, the ability won't trigger at all. If the ability does trigger, it will check again as it tries to resolve. If you've cast a spell from your hand since the ability triggered, the ability won't do anything.