To unlock the I am Legend trophy in Assassin's Creed Odyssey, you will first need to receive five legendary pieces of armour as rewards by killing cultists and finishing quests. For an easy and quick alternative, you can purchase complete sets from the in-game store. And if you'd like, you can also purchase some in exchange for real money.
You don't have to have a complete matching set to unlock the trophy. The only requirement is that each slot is filled with a Legendary (gold) piece of gear. Once you have all five slots filled, equip and Legendary melee weapon and the trophy will unlock.
The Legendary Armour Sets in Assassin's Creed Odyssey can be seen below:
Legendary Armour from the In-game Store:- Pegasos Mythical Pack
- Spartan Renegade Pack
- Nemean Lion Pack
- Underworld Mythical Pack
Legendary Armour Unlocked Through Progression:*** Spoiler - click to reveal ***- Pirate (Gods of the Aegean Sea cultist drops)
- Pilgrim (sacred temples)
- Greek Heroes (Mercenary drops)
- Snake (Eyes of Kosmos cultist drops)
- Agamemnon (The Silver Vein cultist drops)
- Athenian War Hero (Delian League cultist drops)
- Spartan War Hero (Peloponnesian League cultist drops)
- Arena Fighter (arena contender drops)
- Achilles (Heroes of the Cult cultist drops for Alexios)
- Amazon (Heroes of the Cult cultist drops for Kassandra) thanks ForbiddenJobu
- Immortal (Worshippers of the Bloodline cultist drops)
- Artemis (Daughters of Artemis animal hunt rewards)
- Abomination (Hard Mode Mythical Creature drops)
I'd advise against using the sets in the spoiler tag below. You don't need to spend real money for this trophy.