ProxyKing cards are not official Magic: The Gathering cards and are not legal for Wizards-sanctioned tournaments
My instincts tell me that we would want to start with six Horizon Lands total, and its important that you dont dare play less than four Horizon Canopies to make room for them
On top of that, Aurora, Dreaming Guardians three strength and five willpower pair with its two lore to make it a solid card by itself, able to likely withstand a few attacks in the early game - especially given that having Shift 3, allowing you to bring it out on top of another Aurora card for a lower ink cost, means you can have it on the field very early on
Edward Kenway Sure, Edward Kenway costs 5 mana
And beyond the subtype, their mechanics vary wildly, so very few of them function well with Jenova