With a three lore value and an ability that returns all opposing characters to their players hand, Milo is a strong card with some added insurance built into him.
This isn't the first eccentric Final Fantasy promo to come out this year
Serah Farron's last ability checks at the moment it would trigger to see if you control two or more other legendary creatures
Diviner's Wand for example, 3 mana to cast, 3 to equip, 4 to draw 1 card, 10 mana to draw your first card, and 4 mana for each card after that doesnt seem worth it at all
Carly decided to Turbo Duel against the player in the meantime
All of that said, should you manage to build a deck that can Station this consistently, it does create a two-card death combo in Standard