X can't be greater than the number of players in the game. Reveal cards from the top of your library until you reveal X land cards. Put those land cards onto the battlefield tapped and the rest on the bottom of your library in a random order.
Flying When Opportunistic Dragon enters the battlefield, choose target Human or artifact an opponent controls. For as long as Opportunistic Dragon remains on the battlefield, gain control of that permanent, it loses all abilities, and it can't attack or block.
Flash You control your opponents while they're searching their libraries. While an opponent is searching their library, they exile each card they find. You may play those cards for as long as they remain exiled, and you may spend mana as though it were mana of any color to cast them.
Enchant creature Enchanted creature can't attack or block unless its controller pays {3}. Activated abilities of enchanted creature cost {3} more to activate.
More Than Meets the Eye {2}{U}{R}{W} At the beginning of each end step, bolster 1. When Optimus Prime dies, return it to the battlefield converted under its owner's control.
{1}: Turn target permanent you control to its other face. {1}: Until end of turn, Optimus Prime, Inspiring Leader becomes a Construct with base power and toughness 6/6 and creatures you control gain trample.
{T}: Target opponent chooses any number of creatures they control. During that player's next turn, the chosen creatures attack if able, and other creatures can't attack. At the beginning of that turn's end step, destroy each of the chosen creatures that didn't attack this turn. Activate only during your turn.
Haste Tribute 2 When Oracle of Bones enters the battlefield, if tribute wasn't paid, you may cast an instant or sorcery spell from your hand without paying its mana cost.
You may play an additional land on each of your turns. Play with the top card of your library revealed. You may play lands from the top of your library.
When Oracle of Tragedy enters the battlefield or dies, choose one — • Draw a card, then discard a card. • Shuffle up to four target cards with mana value 3 or greater from your graveyard into your library.
Flying When Oracle of the Alpha enters the battlefield, conjure the Power Nine into your library, then shuffle. Whenever Oracle of the Alpha attacks, scry 1.