Cheapest priced copy (Eldritch Moon): $0.35 at Card Kingdom, near mint, their price list as of .
Shrill Howler // Howling Chorus 
Creature — Werewolf Horror // Creature — Eldrazi Werewolf · 3/1 · Uncommon · Eldritch Moon · #168
Creatures with power less than this creature's power can't block it.
{5}{G}: Transform this creature.
Creatures with power less than this creature's power can't block it.
Whenever this creature deals combat damage to a player, create a 3/2 colorless Eldrazi Horror creature token.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 168 | Uncommon | $0.35 | $0.49 |
| Innistrad Remastered | 214 | Uncommon | $0.35 | $0.49 |
| Innistrad Remastered | 469 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 13 July 2016The power of the blocking creature and that of Howling Chorus are compared only at the moment that blockers are chosen. Changing either creature's power later won't cause Howling Chorus to become unblocked.
- 13 July 2016The power of the blocking creature and that of Shrill Howler are compared only at the moment that blockers are chosen. Changing either creature's power later won't cause Shrill Howler to become unblocked.