Be sure to include cards that can target your creature on other players' turns to maximize Hojo's card draw - remember, Seeker of SkybreakSeeker of Skybreak can target itself to untap and draw a card
If you warp in a creature, you have your whole turn until it has to warp out, so (on top of any enters trigger it may have) you can sacrifice it, blink it, attack with it (if it has haste, or you grant haste to it), etc
In Constructed Magic, there are much better ways to fill your graveyard, just as there are much better creatures you can get in white for four mana
The result is surprisingly similar to what you get from Dromoka, the Eternal, but the color pair aligns better
For X and three Green, you get a Sorcery that reads, Return X target cards with different mana values from your graveyard to your hand
Originally, I gravitated toward using the Invasion ETB (Enters the Battlefield) tapped lands and one of each Basic