Rulings

• 2021-02-05
  The World Tree’s third ability doesn’t cause lands you control to lose any of their abilities. It also doesn’t cause lands you control to gain or lose any land types.
• 2021-02-05
  If you have two commanders with the partner ability in the command zone, Command Beacon’s effect puts one of your choice into your hand, not both.
• 2021-02-05
  If you have two commanders, the ability adds one mana of any color in their combined color identities.
• 2021-02-05
  If your commander is a card that has no colors in its color identity, Command Tower’s ability produces no mana. It doesn’t produce .
• 2021-02-05
  Any effects that modify the enchanted creature’s power without setting it to a specific value will apply after its base power is set, regardless of the order in which those effects were created. The same is true of counters that modify its power.
• 2021-02-05
  Withercrown overwrites all previous effects that set the enchanted creature’s power to specific a value. Other effects that set its base power to specific values that start to apply after Withercrown becomes attached to the creature will overwrite this effect.
• 2021-02-05
  If you don’t have a commander, Command Tower’s ability produces no mana.