2014-11-24 : If you choose to put permanent cards with morph onto the battlefield with the third ability, you must put them onto the battlefield face up.

2014-11-24 : Ugin, the Spirit Dragon is not a Dragon card; that is, he doesn't have the creature type Dragon. Spells and abilities that refer to Dragon cards or Dragons don't apply to Ugin.

2020-06-23 : A permanent card is an artifact, creature, enchantment, land, or planeswalker card.

2020-06-23 : If a permanent has {X} in its mana cost, X is considered to be 0.

2020-06-23 : The mana value of a token that isn't a copy of another object is 0. A token that is a copy of another object has the same mana cost as that object.