Vigorspore Wurm
Guilds of Ravnica — Common
Creature — Wurm
Vigorspore Wurm rulings:
2018-10-05: The value of X is determined only as the undergrowth ability resolves. If the number of creature cards in your graveyard changes later in the turn, the target creature is unaffected.
2018-10-05: If there are no creature cards in your graveyard, the target creature just gains vigilance until end of turn.
2018-10-05: If Vigorspore Wurm gains menace, it can’t be blocked at all.
2018-10-05: Creature cards with other types, such as artifact creature cards, count for undergrowth abilities.
2018-10-05: Because tokens aren’t cards, they never count for undergrowth abilities.