Noble Knight Eachtar - Noble Knights of the Round Table Box Set (NKRT)

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.