Thread:RankUpMagic212/@comment-5298730-20160108013611/@comment-16107481-20160928161341

Symbol of Xel'lotath Ritual Spell Card This card can be used to Ritual Summon "Xel'lotath the Deity of Insanity" or "Shadow Guardian of Xel'lotath". You must also Tribute monsters from your hand or field, whose total Levels equal or exceed the Level of the Ritual Monster you Ritual Summon - the total amount of Levels that were reduced (or increased) from your opponent's monsters by the Tributed monsters' effects. If you do: Decrease the Level of the Summoned monster by the total amount of Levels that were reduced (or increased) from your opponent's monsters by the Tributed monsters' effects. (A monster's positive indicator cannot be reduced lower than 1 by this effect, and a monster's negative indicator cannot be increased above -1 by this effect.)