How it grades
Fundamentals 66/100.
No single established archetype dominates. This is its own brew around Prosper, Tome-Bound, so the fundamentals below carry the grade. Prosper, Tome-Bound sits on the cEDH tier list, so the ceiling here is tournament-grade, and experienced tables will treat it that way. Its strongest fundamental is land count (39 lands. About 40 fits this curve); the first thing to tighten is commander synergy: Only 14 of 60 spells play into your commanders' plan; they want treasure, burn support. Counts the builds players run with your commanders (Treasure, Artifacts, Tokens; from EDHREC).
- AMana reliability
- A+Land count
- A+Mana curve
- ARamp
- CCard draw
- AInteraction
- DCommander synergy
- BWin conditions
- A-Card quality
- A+Legality & size
Where it falls short
- CCard draw5 draw effects (want 10+).
- DCommander synergyOnly 14 of 60 spells play into your commanders' plan; they want treasure, burn support. Counts the builds players run with your commanders (Treasure, Artifacts, Tokens; from EDHREC).
- BWin conditions15 threats (want 18+) and no combo found. This deck can win, but slowly.
Strong on mana reliability, land count, mana curve, ramp, interaction, card quality and legality & size.
80 cards graded: A- 3, B+ 18, B 42, B- 14, C+ 2, C 1. The command zone is the plan, so it isn't graded.
Upgrades
Made together, they take Planar Portal from C+ to B-.

Braids, Arisen Nightmare1BB$4.61
In place of Bag of Devouring: weakest slot in the deck (59/100)
Fills the draw gap (you're at 5 of 10+). Pays off your treasure engine (6 producers). Pays off the commanders' treasure plan.

Demand Answers1R$0.65
In place of Orazca Relic: weakest slot in the deck (62/100)
Top-5% staple by play data. Fills the draw gap (you're at 5 of 10+). Pays off your treasure engine (6 producers).

Idol of Oblivion2$2.98
In place of Karazikar, the Eye Tyrant: weakest slot in the deck (70/100)
Fits the token build players run with your commanders. Fills the draw gap (you're at 5 of 10+). Top-5% staple by play data.

Liliana, Dreadhorde General4BB$10.62
In place of Commander's Sphere: weakest slot in the deck (73/100)
Fills the draw gap (you're at 5 of 10+). Fits the token build players run with your commanders. Top-5% staple by play data.

Guttersnipe2R$0.50
In place of Phthisis: its B cost is heavy for this mana base; expect it several turns late (46/100)
Pays off your instant-and-sorcery engine (21 producers). Shares the commanders' burn mechanic. Top-5% staple by play data.

Unwinding Clock4$21.72
In place of Consuming Vapors: weakest slot in the deck (51/100)
Pays off your artifact engine (14 producers). Fits the artifact build players run with your commanders. Top-5% staple by play data.

Marionette Apprentice1B$2.20
In place of Ebony Fly: enters tapped: the slow version of its job (51/100)
Pays off your artifact engine (14 producers). Fits the artifact build players run with your commanders. Top-5% staple by play data.

Reckless Fireweaver1R$0.44
In place of Dead Man's Chest: weakest slot in the deck (54/100)
Pays off your treasure engine (6 producers). Pays off your artifact engine (14 producers). Pays off the commanders' treasure plan.

Coruscation Mage1R$2.37
In place of Izzet Chemister: weakest slot in the deck (55/100)
Pays off your instant-and-sorcery engine (21 producers). Shares the commanders' burn mechanic. Top-5% staple by play data.

Young Pyromancer1R$0.31
In place of Dark-Dweller Oracle: weakest slot in the deck (56/100)
Pays off your instant-and-sorcery engine (21 producers). Fits the token build players run with your commanders. Top-5% staple by play data.
Save a copy to try them. The editor's Improve list has these and more, with the swaps one click each.
Decklist
Commander 1
Creatures 20
- B+
- B-
- B
- A-
- B+
- B+
- B
- B-
- B
- B
- B+
- B-
- B+
- A-
- B+
- B+
- B+
- B
- B+
- B
Instants 9
- B+
- B
- B
- B
- B
- B
- B-
- B
- B-
Sorceries 12
- C+
- B-
- B
- B
- B
- C
- B
- B-
- B
- B-
- B
- B-
Artifacts 14
- B
- B+
- B+
- B+
- A-
- B
- B
- B+
- B
- B
- B-
- B
- B+
- C+
Enchantments 5
- B-
- B-
- B+
- B-
- B-
Lands 39
- B
- B+
- B
- B
- B
- B
- B
- B
- B+
- B
- B
- B×4
- B×4
- B×3
- B×3
- B×4
- B×3
- B×3
- B×3
- B
Prices are current market estimates, not what the sealed product costs. Magic: The Gathering is © Wizards of the Coast.
