Cheapest priced copy (Foundations): $0.35 at Card Kingdom, near mint, their price list as of .
Cackling Prowler 
Creature — Hyena Rogue · 4/3 · Common · Foundations · #101
Ward {2} (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays {2}.)
Morbid — At the beginning of your end step, if a creature died this turn, put a +1/+1 counter on this creature.
Legal inCommanderBrawlStandardPioneerModernLegacyVintagePauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations | 101 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 8 November 2024Cackling Prowler's last ability will check as the end step starts to see if a creature died this turn. If none did, the ability won't trigger at all.