Once per turn, the first time a monster you control equipped with an Equip Spell would be destroyed by battle, it is not destroyed.
You can only use each of the following effects of "Fateful Adventure" once per turn.
During your Main Phase: You can add 1 monster that mentions "Adventurer Token" from your Deck to your hand, then send 1 card from your hand to the GY.
If a monster(s) is Normal or Special Summoned: You can take 1 Equip Spell that mentions "Adventurer Token" from your Deck, and either add it to your hand or equip it to 1 "Adventurer Token" you control.