Which type of card can successfully transform when the conditions are met?

A double-faced card is designed specifically to transform under certain conditions. In Magic: The Gathering, these cards feature different characteristics on each side and have specific rules governing when they can transform. For instance, a double-faced card might transform into a more powerful version of itself when certain criteria are met during gameplay, such as a specific action taken or a condition being fulfilled.

Single-faced cards, on the other hand, do not have the mechanics or design to transform at all, as they consist of only one face with fixed attributes. Artifact cards can have various effects and abilities, but unless they are double-faced, they won't transform. Basic land cards also do not have transformation mechanics since they serve a different purpose within the game, primarily focusing on mana generation.

Thus, double-faced cards are uniquely equipped to handle the transformation mechanic, making them the only choice that aligns with the ability to successfully transform when the appropriate conditions are satisfied.