Marvel: Crisis Protocol is a skirmish miniatures game in which players pick teams of Marvel heroes and villains to fight against each other in different scenarios. Each character has its own abilities and "Threat" level, with some growing even more powerful as they take more damage. Over 60 characters will be released by the end of 2020, with a diverse collection of characters from every corner of the Marvel Universe. The X-Men are one of the more recent additions, with a first wave that includes Cyclops, Wolverine, Sabretooth, and Magneto coming out later this year. Players can also choose from characters from the Avengers, the Defenders, the Guardians of the Galaxy, or the Black Order when building their teams.

Crystalia Amaquelin is a princess of the Inhuman Royal Family and younger sister of Medusa, the Queen of the Inhumans. Like other Inhumans, Crystal was exposed to the Terrigen Mists at a young age to gain powers through Terrigenesis, acquiring the ability to psionically control the classic elements of air, earth, fire, and water. Crystal is often accompanied by her loyal companion, Lockjaw.

Lockjaw is a giant Inhuman bulldog with the power of incredible teleportation. He serves the Inhuman Royal Family as an escort and loyal protector—as well as a means of transportation. Lockjaw can teleport himself and those nearby anywhere he desires on the Earth or Moon. Lockjaw can also psionically track scents across dimensions and has an empathic bond to those he protects. If his wards are ever in danger, Lockjaw fiercely protects them with his incredible strength.