However if you only have 1 or 2 different "Noble Arms" Equip Spell Cards in your Graveyard, you can alternatively Special Summon "Noble Knight Borz" from your Deck via the effect of "Medraut", re-equip the destroyed "Noble Arms" card to "Borz", then use the effect of "Borz" to gain a "Noble Arms" card to make "Medraut" Level 5 again. When you Xyz Summon this card, you will also be able to use its effect to equip the other "Noble Arms" Equip Spell Cards in your Graveyard that were sent there by "Borz".
Keep in mind that you will have to use the effect of this card to equip the "Noble Arms" Equip Spell Card that "Borz" was equipped with, since it was already destroyed once that turn.
If you have "Noble Knight Borz", "Noble Knight Brothers" and "Ignoble Knight of High Laundsallyn" in your hand, Normal Summon "Brothers" and use its effect to Special Summon the other monsters from your hand. Tribute "Brothers" with the effect of "Laundsallyn", then equip your gained Equip Card to "Borz". You can then use the effect of "Borz" to fill your Graveyard with desirable "Noble Arms" cards before Xyz Summoning this card.
"Reinforcement of the Army" can help add 1 of these 2 Level 4 "Noble Knight" monsters to your hand, if you are missing one of them for this combo.
If this card has used up all of its Xyz Materials, Tribute Summon "Ignoble Knight of Black Laundsallyn" or "Noble Knight Eachtar" using it. Any re-equippable "Noble Arms" cards can be equipped to the Tribute Summoned monster, and you can also Special Summon a "Noble Knight" monster from your Graveyard, potentially to Xyz Summon another copy of this card.
Alternatively, Tribute this card using the effect of "Laundsallyn" to trigger the same scenario.