You can banish 2 ""Noble Knight"" monsters from your Graveyard; Special Summon this card from your hand or Graveyard. You can only use this effect of ""Noble Knight Eachtar"" once per turn. A Synchro or Xyz Summon of a ""Noble Knight"" monster using this card as a Material cannot be negated, also your opponent cannot activate cards or effects when that monster is Special Summoned.