Even outside of triggering our payoffs, having a bunch of card draw is pretty powerful, letting us dig through our deck for removal and threats and making it super hard to flood out since, if we happen to draw too many lands, we can always discard them to Thirst for Discovery or Tainted Indulgence
1 Red Mana, Tap: Creature tokens you control gain haste until end of turn
The Extra Deck: 1x Starving Venom Fusion Dragon: Used as a Super Poly target
I'm a HUGE proponent of running veiler and other handtraps over imperm because I like to mazimize the chance of drawing into them on the opponents turn with the field spell
The fact that it costs eight mana also hardly seems like a concern, given how easily green can pull ahead of other colors with land ramp and mana dorks
You want to make sure that buying packs is the best use of your money or if you should stick to just buying the sets singles