Unlike a face-down creature that was cast using a disguise or morph ability, a manifested creature may still be turned face up after it loses its abilities if it's a creature card
Such great strategy marred by an extremely heavy buy-in and upkeep
Diabolic Intent is definitely not for every deck, but if you play a lot of efficient creatures or find that your playgroup is prone to board states that stall out leaving everyone looking for answers, consider giving this card a chance to break the ice and propel you to victory
By discarding, milling, or putting cards in your graveyard by some other means, you can efficiently cheat massive creatures into play
Whether you want to protect your own win condition, or stop your opponent from resolving theirs, both of these cards can swing a game in your favor without you needing to hold up any mana