Cheapest priced copy (Innistrad Remastered): $0.49 at Card Kingdom, near mint, their price list as of .
Duskwatch Recruiter // Krallenhorde Howler 
Creature — Human Warrior Werewolf // Creature — Werewolf · 2/2 · Uncommon · Shadows over Innistrad · #203
{2}{G}: Look at the top three cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
At the beginning of each upkeep, if no spells were cast last turn, transform this creature.
Creature spells you cast cost {1} less to cast.
At the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Innistrad Remastered | 193 | Uncommon | $0.49 | $0.49 |
| Innistrad Remastered | 323 | Uncommon | $1.79 | $2.49 |
| Innistrad Remastered | 467 | Uncommon | $0.59 | $1.99 |
| Shadows over Innistrad | 203 | Uncommon | $0.59 | $1.99Out of stock |
5 rulings from Wizards of the Coast
- 8 April 2016The abilities that transform a Werewolf back and forth look at the entire previous turn, even if the Werewolf with that ability wasn't on the battlefield for some or all of that turn.
- 8 April 2016To trigger the Werewolf's back face's transform ability, a single player must have cast two or more spells during the previous turn. If multiple players each cast just one spell during the previous turn, the ability won't trigger.
- 8 April 2016You can activate Duskwatch Recruiter's first ability in response to its triggered ability.
- 8 April 2016Krallenhorde Howler's first ability can only reduce the generic mana portion of a creature spell's cost.
- 8 April 2016Krallenhorde Howler's first ability can reduce alternative costs such as madness costs.