Initially, use Altar of Dementia to sacrifice Hogaak and mill yourself
Lorcana's Set 7 Ruby/Sapphire Deck Explained For example, the Ruby/Sapphire deck comes with Donald Duck - Focused Flatfoot, which has seen competitive play due to its decent statline for its 5-Ink cost, all while also ramping up one's Inkwell in Lorcana
Lastly, here are a bunch of original energy cards from Kaladesh that are solid ways to round out the deck with ways to keep the energy flowing: Attune with Aether Aetherwind Basker Peema Aether-Seer Servant of the Conduit Bristling Hydra Sage of Shailas Claim Woodweavers Puzzleknot Landfall -Enablers Green has no shortage of ways to leverage Landfall triggers, but I particularly like those that are permanents you can play for free with Nissa, such as Ancient Greenwarden, Ashaya, Soul of the Wild and especially Lumra, Bellow of the Woods
M Rayquaza EX (Shiny Full Art) #98 - XY - Ancient Origins 1 Available Near Mint Ancient Origins $1,863.00 (approx