Protean Hulk
Dissension — rare
Creature — Beast
Protean Hulk rulings:
2018-03-16: If a card in your library has in its mana cost, X is considered to be 0.
2018-03-16: You can find any number of creature cards, so long as their total mana value is 6 or less. For example, you could find eight creature cards with mana value 0 and three with mana value 2, but you couldn't find two with mana value 4.