Texto em português

+2: Ugin, o Dragão Espírito, causa 3 pontos de dano a qualquer alvo.

−X: Exile cada permanente com custo de mana convertido igual ou inferior a X que seja colorida.

−10: Você ganha 7 pontos de vida, compra sete cards e coloca até sete cards de permanente da sua mão no campo de batalha.

Rulings

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.2020-06-23
A permanent card is an artifact, creature, enchantment, land, or planeswalker card.2020-06-23
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.2014-11-24