Shapeshifter

Shapeshifters are, as their name would imply, creatures and people who can change their shape at will.

Ravnica

Lupul

Lupul is a name derived from the Old Ravi word for "lurker". Found solely in Ravnica, Lupuls are shapeshifters that follow the vampire Szadek. In their natural forms, they have the form of a mass of blue-white worms that can move as a single creature with surprising speed and dexterity. In this form they are similar to insects and as such those akin to the bugs can communicate with them and to some extent control them, one such example is Jarad the devkarin hunter. They shapeshift by consuming others, and once they have consumed a living thing in their natural form, they can later change into that creature's form whenever they choose. Lupuls are extremely stealthy and nearly impossible to catch.

In the game, Lupuls are represented by the Dimir cards: Dimir Doppelganger and in the artwork of Mindleech Mass.