Fiendsmith's Sequence - The Infinite Forbidden (INFO)

2 monsters, including a LIGHT Fiend monster
During your Main Phase: You can Fusion Summon 1 Fiend Fusion Monster from your Extra Deck, by shuffling its materials from your GY into the Deck. You can target 1 LIGHT non-Link Fiend monster you control; equip this card from your field or GY to that monster you control as an Equip Spell with the following effect.
• Your opponent cannot target the equipped monster with card effects.
You can only use each effect of "Fiendsmith's Sequence" once per turn.