Iroh, Grand Lotus (Alternate Art) Katara, Bending Prodigy Tapping six artifacts and/or creatures to draw a card with Katara's waterbending ability sounds like a lot, but the cost is buffered slightly by Katara getting more powerful if you include her among the tapped
Sokka, Tenacious Tactician Sokka, Tenacious Tactician is a powerful riff on one of my favorite cards: Monastery Mentor
Howling Mine is the heart of the draw engine for Stasis decks, because not only does it help find additional land drops (to pay for Stasis), but it can also help keep your opponents hand full, which works well if you use Black Vise as a kill condition
Powder Ganger has another ability that triggers when it enters the battlefield, so each of its token copies does as well
If you do pay the alternate cost, the spell has no targets, and can affect things with hexproof, shroud, or protection (depending on the effect)
Web of Life and Destiny seems prohibitively expensive at first glance, costing eight mana