Gradient Monster

Gradient Monsters are a type of monster found in the extra deck, they has a border similar to pendulum monsters, the top is Crimson while the bottom half is Dark Blue. In Yu-Gi-Oh! V2, The Twins of the Pendent, these monsters return to the extra deck when destroyed but this mechanic is only shown in said fanfiction. These cards can summon by Gradient Summoning using a Syntheses Monster and any number of Gradient Material.