Being single color means it can go into more decks and even when its not convoked, it has a perfectly reasonable casting cost for exiling any nonland permanent
Discarding cards is barely a cost, especially with cards like Inti, Seneschal of the Sun and Containment Construct that turn it into card advantage
Crusade (T1, Ext, S) Granddaddy creature pumper Crusade has spawned countless imitators, including Glorious Anthem, Gerrard's Battle Cry, and Call to Arms, among others
Another great benefit to tutoring for lands are land combos and individually powerful lands
Yeah, utility creatures are a little bit boring, but I think theyll all help fill a role, and as the deck is becoming a bit more midrange, these will be welcome two-for-ones or of vital importance that Scavenging Ooze alongside your Nihil Spellbomb and your Bojuka Bog (plus Crop Rotation to find it and Life from the Loam to recur it) should be just enough to make sure an opponent who wants to get away with graveyard shenanigans will meet stiff resistance
With plenty of options to choose from, youll be able to put a ton of creatures into play