Rulings

• 2014-02-01
  The value of X is calculated only once, as the ability resolves.
• 2013-09-15
  Mana symbols in the text boxes of permanents you control don’t count toward your devotion to any color.
• 2013-09-15
  Hybrid mana symbols, monocolored hybrid mana symbols, and Phyrexian mana symbols do count toward your devotion to their color(s).
• 2013-09-15
  If an activated ability or triggered ability has an effect that depends on your devotion to a color, you count the number of mana symbols of that color among the mana costs of permanents you control as the ability resolves. The permanent with that ability will be counted if it’s still on the battlefield at that time.
• 2013-09-15
  The type-changing ability that can make the God not be a creature functions only on the battlefield. It’s always a creature card in other zones, regardless of your devotion to its color.
• 2013-09-15
  Numeric mana symbols (, , and so on) in mana costs of permanents you control don’t count toward your devotion to any color.
• 2013-09-15
  If a God stops being a creature, it loses the type creature and all creature subtypes. It continues to be a legendary enchantment.
• 2013-09-15
  The abilities of Gods function as long as they’re on the battlefield, regardless of whether they’re creatures.
• 2013-09-15
  If a God enters the battlefield, your devotion to its color (including the mana symbols in the mana cost of the God itself) will determine if a creature entered the battlefield or not, for abilities that trigger whenever a creature enters the battlefield.
• 2013-09-15
  If a God is dealt damage, then stops being a creature, then becomes a creature again later in the same turn, the damage will still be marked on it. This is also true for any effects that were affecting the God when it was originally a creature. (Note that in most cases, the damage marked on the God won’t matter because it has indestructible.)
• 2013-09-15
  If a God is attacking or blocking and it stops being a creature, it will be removed from combat.
• 2020-11-10
  If Xenagos is attacking or blocking and it stops being a creature, it will be removed from combat. It won’t rejoin combat if it resumes being a creature later during that combat.
• 2020-11-10
  Counters put on Xenagos remain on it while it’s not a creature, even if they have no effect.
• 2020-11-10
  Your devotion to two colors is the number of mana symbols among mana costs of permanents you control that are the first color, the second, or both. If an effect counts your devotion to two colors, a hybrid symbol that is both of those colors is counted just once.
• 2020-11-10
  The type-changing ability that can make Xenagos not be a creature functions only on the battlefield. It’s always a creature card in other zones, regardless of your devotion to red and green. It’s always a creature spell while it’s on the stack.
• 2020-11-10
  As Xenagos enters the battlefield, your devotion to red and green will determine whether any replacement effects that affect creatures entering the battlefield apply. Because replacement effects are considered before Xenagos is on the battlefield, the mana symbols in its mana cost won’t be counted when determining this.
• 2020-11-10
  If an effect causes Xenagos to lose all abilities, its ability that causes it to stop being a creature still applies if appropriate.
• 2020-11-10
  When Xenagos enters the battlefield, your devotion to red and green will determine if a creature entered the battlefield or not for abilities that trigger whenever a creature enters the battlefield. The mana symbols in Xenagos’s own mana cost are counted when determining this.
• 2020-11-10
  If Xenagos stops being a creature, it loses the type creature and the creature type God. It continues to be a legendary enchantment.
• 2020-11-10
  Xenagos’s abilities function as long as it’s on the battlefield, regardless of whether it’s a creature.
• 2020-11-10
  When Xenagos enters the battlefield, your devotion to red and green will determine if a creature entered the battlefield or not for abilities that trigger whenever a creature enters the battlefield. The mana symbols in Xenagos's own mana cost are counted when determining this.
• 2020-11-10
  Xenagos's abilities function as long as it's on the battlefield, regardless of whether it's a creature.
• 2020-11-10
  If Xenagos is attacking or blocking and it stops being a creature, it will be removed from combat. It won't rejoin combat if it resumes being a creature later during that combat.
• 2020-11-10
  Counters put on Xenagos remain on it while it's not a creature, even if they have no effect.
• 2020-11-10
  The type-changing ability that can make Xenagos not be a creature functions only on the battlefield. It's always a creature card in other zones, regardless of your devotion to red and green. It's always a creature spell while it's on the stack.
• 2020-11-10
  As Xenagos enters the battlefield, your devotion to red and green will determine whether any replacement effects that affect creatures entering the battlefield apply. Because replacement effects are considered before Xenagos is on the battlefield, the mana symbols in its mana cost won't be counted when determining this.
• 2013-09-15
  Mana symbols in the text boxes of permanents you control don't count toward your devotion to any color.
• 2013-09-15
  If an activated ability or triggered ability has an effect that depends on your devotion to a color, you count the number of mana symbols of that color among the mana costs of permanents you control as the ability resolves. The permanent with that ability will be counted if it's still on the battlefield at that time.
• 2013-09-15
  Numeric mana symbols (, , and so on) in mana costs of permanents you control don't count toward your devotion to any color.