Finally, Sandstorm Verge reads like basically an unplayable card that I would only be interested in if I get lucky and end in a mono colored aggro deck
For just three mana, one of each of the Bant colors, Morska comes down quickly, potentially as early as your second turn, and at the top of each of your turns you investigate, giving you a Clue token which you can use to draw a card in exchange for two mana
Cards like Mesa and Verduran Enchantress will keep your hand full of enchantments, while Starfield Mystic and Herald of the Pantheon will make those enchantments cheap to cast
Avenger of Zendikar is far weaker in this role as you have few lands early when it is best to cheat big things in, the plants don't fly nor can you pump them up to being relevant without the Avenger itself in play.Basically, if you want lots of things, if you don't want to die to attacks, play this
It pairs nicely with self-mill effects, while it grabs back something impactful like a draw spell or removal piece to keep you moving forward