Gigadrowse is the best of the bunch, and probably the best card in the deck
Once we complete the dungeon one time, our dungeon creatures (Caves of Chaos Adventurer, Ravenloft Adventurer, and Tomb of Horrors Adventurer) become that much more powerful, and with Loot Dispute out, we get a 5/5 Dragon whenever we complete the dungeon
At face value, Lotus Field isn't really worth the trouble
If there are two of these on the battlefield, each of them will modify each draw (after the first one if during the draw step) and will cause the player to discard or to mill a card
Vapor Snag, Pongify, and Rapid Hybridization are catchall "removal" spells that screw with basically every creature-combo in the format, not to mention aggressive decks like Affinity and Infect
Haste creatures are great for aggressive decks and to catch opponents off guard before they can set up their defenses