Convicted Killer
Creature — Human Werewolf
At the beginning of each upkeep, if no spells were cast last turn, transform this creature.
None are more dangerous than those who have already been sentenced to death.
Branded Howler
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Creature — WerewolfAt the beginning of each upkeep, if a player cast two or more spells last turn, transform this creature.
It is said that one of the most notorious werewolf howlpacks, the Vildin, only calls those whose hands are already stained with blood.
Deruchenko Alexander
Shadows over Innistrad (SOI)
• #149Rulings
To 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.
(wotc • 2016-04-08)
The 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.
(wotc • 2016-04-08)
Rulings
To 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.
(wotc • 2016-04-08)
The 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.
(wotc • 2016-04-08)