This card can be used to Ritual Summon any number of Nekroz Ritual Monsters. Tribute 1 monster from your hand or field, or send 1 monster from your Extra Deck to the Graveyard, also, after that, Ritual Summon any number of Nekroz monsters whose total Levels exactly equal the Level of that monster. You can only use this effect of Nekroz Kaleidoscope once per turn. If you control no monsters: You can banish this card and 1 Nekroz monster from your Graveyard; add 1 Nekroz Spell Card from your Deck to your hand.