Evil Star

Evil Star is an archetype composed of several LIGHT Fiend-Type monsters centered about modifying each other's Levels and limiting their opponent's options.

Evil Star Phecda blocks the opponent from Summoning low-Level monsters, Evil Star Alioth weakens the opponent's monsters, Evil Star Alkaid and Evil Star Benetnasch block the opponent's Spells and Traps if they're both in the field, and their ace monster Evil Star Immortal King Polaris not only outright blocks Xyz Summons as long as it lives, it also can redirect effects that target an Evil Star.