These effects more or less fall into two categories: Theyre either used as a form of graveyard hate to trip up your opponents, or to shuffle cards back into your library
On top of these strategies, you can attack with your weenie creatures (now with deathtouch) and really put some pressure on opponents
Nethroi, Apex of Death Nethroi, Apex of Death is a great Abzan commander for its graveyard possibilities
Creatures (28) 4 Llanowar Elves 4 Jadelight Ranger 2 World Shaper 4 Dusk Legion Zealot 1 Multani, Yavimaya's Avatar 4 Stitcher's Supplier 1 Izoni, Thousand-Eyed 2 Molderhulk 4 Glowspore Shaman 2 Hatchery Spider Planeswalkers (1) Lands (24) Spells (7) I want this to be good, but Im skeptical
Exalted Sunborn is also a card good at many stages of the game, and though not quite the powerhouse that Elspeth is, the warp ability allowing it to come down early to boost your velocity or come down for cheap later in a multi spell turn makes token doubling easier than ever
Im not sure if Id want to build Narci as an Enchantress deck, which would be the draw to it