Both of these are worthy of being a three-mana spell on their own, but having them both on one card makes this a great card against a lot of different decks, and you can play it without worrying about what it is your opponent might be doing
the ship lives through its self-aware artificial mind, Kilo
With nine fetchlands, four shocklands, and two Horizon Canopies, Bant Spirits is, on average, taking one damage for every land played, assuming two life paid for a shockland
Archon of Cruelty is an amazing target for reanimation spells, because he provides his controller with a huge amount of value as soon as he enters the battlefield
Not only is Tiana able to quest for two lore, but as long as Tiana is exerted she has an automatic defensive mechanism that a challenging character has a negative three to their attack unless the other player pays three ink to counter it