In fact Thanos with the power of a Cube even became one with the universe and managed to defeat the entity Kronos. However, Doctor Doom still believes that the conquest of a universe is possible with one Cosmic Cube.

Originally thought to be powerful enough to affect reality on a multiversal scale, it turned out that most of its effects were probably illusory in nature. The Cosmic Cube's primary ability is 'wish granting' or rather an extreme level of reality warping. It would also provide the Cube with its almost unlimited power. When entering the Earth's dimension, the energies can be held in a matrix, and the force itself would shape the matrix into a perfect cube. Sentient beings wanting to create a Cosmic Cube must first generate a force field to open a rift to another dimension inhabited by the Beyonders, allowing the extra-dimensional energy to filter through the rift. However, similar objects with different shapes are known as Cosmic Containment Units. Most Cosmic Cubes are cube-shaped matrixes. They require practice to be used properly, but a skillful user can alter all reality to answer to its thoughts, granting anything they desire. The Cosmic Cube is an item that can control matter and energy, answering to the will of the sentient beings that use them.

5.4 Marvel Disk Wars: The Avengers (Earth-14042).

5.3 The Avengers: Earth's Mightiest Heroes (Earth-8096).

5.2 Marvel Cinematic Universe (Earth-199999).

Infinity cube