Aside from the decks, both sets will have play and collector boosters, along with bundles and draft night bundles
Since their value increases for each enemy permanent they take off of the battlefield, you're effectively tripling the benefit gained from casting one
It works best with aggressive decks since it clears away blockers while pressuring your opponents and pairs surprisingly well with blue due to mass tap effects like Sleep and Opposition
Additions: Cuts: And here's the deck with the upgrades installed: Further Upgrades Here are even more cards you can use to upgrade your Spirit Tribal beyond the sample $50 budget: Under $10: Glasspool Mimic, Wayfarer's Bauble, Talisman of Progress, Deserted Beach, Glacial Fortress Pricey stuff: Kindred Discovery, Hallowed Fountain, Sea of Clouds, Tundra, Flooded Strand Coming Soon: Werewolf Tribal Update
this deck leans heavily on enrage synergies for extra abilities
Flying, vigilance, deathtouch, and lifelink all make an appearance too