Tam, the Possibility: Bracket 3 (Upgraded) — Example Deck
Average Upgraded decklist for Tam, the Possibility, built from 782 community decks.

Test Hand
Creatures 13
Birds of Paradise$9.04
Bloom Tender$14.11
Deepglow Skate$0.37
Evolution Sage$2.65
Flux Channeler$3.42
Onakke Oathkeeper$9.49
Sanctum Lurker$0.71
Spark Double$10.44
Instants 6
Counterspell$3.99
Loyal Tutor$1.44
Mutational Advantage$7.65
Path to Exile$0.37
Ripples of Potential$5.30
Swords to Plowshares$1.09
Sorceries 6
Blasphemous Act$1.63
Entrust the Spark$0.25
Farseek$0.26
Nature's Lore$1.15
Overwrite the Multiverse$1.53
Three Visits$5.19
Artifacts 7
Arcane Signet$0.25
Chromatic Lantern$2.20
Fellwar Stone$2.72
Gideon's Memorial$0.35
Ichormoon Gauntlet$32.05
Sol Ring$0.91
The Chain Veil$18.95
Enchantments 8
Brokers Ascendancy$3.46
Doubling Season$33.14
Oath of Ajani$0.97
Oath of Nissa$1.26
Oath of Teferi$10.11
Way of the Necromancer$0.30
Way of the Paradox$0.38
Way of the Pyromancer$0.27
Planeswalkers 22
Ajani Unrelenting$10.07
Chandra, Chill of Compliance$7.59
Chandra, Legacy of Fire$11.17
Chandra, Torch of Defiance$2.19
Elspeth, Sun's Champion$0.40
Jace, Reality Sculptor$0.86
Liliana, Dreadhorde General$11.73
Narset, Parter of Veils$1.21
Nicol Bolas, Dragon-God$34.43
Oko, Thief of Crowns$7.15
Tamiyo, Field Researcher$4.20
Teferi, Hero of Dominaria$9.29
Teferi, Master of Time$12.65
Teferi, Time Raveler$7.45
The Eternal Wanderer$2.05
The Theorist, Jace Beleren$36.09
Ugin, the Spirit Dragon$12.42
Vraska, Betrayal's Sting$4.63
Wrenn and Realmbreaker$8.05
Lands 27
Blood Crypt$5.88
Breeding Pool$5.34
City of Brass$9.52
Command Tower$0.28
Exotic Orchard$0.28
Fatehold Annex$0.18
Flooded Strand$15.40
Godless Shrine$5.28
Hallowed Fountain$4.86
Interplanar Beacon$0.18
Karn's Bastion$3.78
Misty Rainforest$36.23
Overgrown Tomb$5.37
Plaza of Heroes$3.88
Polluted Delta$21.27
Reflecting Pool$5.32
Sacred Foundry$6.39
Scalding Tarn$35.63
Spara's Headquarters$13.63
Steam Vents$5.58
Stomping Ground$4.86
Temple Garden$4.76
Transformative Commons$0.20
Verdant Catacombs$29.03
Watery Grave$6.88
Windswept Heath$12.12
Wooded Foothills$17.87
Basics 10
Forest2x
$0.09
Island3x
$0.08
Mountain$0.10
Plains2x
$0.08
Swamp2x
$0.11