The Library
Deep dives for serious EDH brewers
Math, rulings, archetype field guides, and design history. The weekly digest brings you the data; the library teaches you what to do with it.
Deck construction math

Board wipe count by bracket: 2, 3, or 4?
Low-power decks need 2. High-power decks need 4+. Here's the math.

The second-land-drop problem: why some decks mulligan forever
It's not your mana base. It's your ramp density. Here's how to tell.

Why your deck wants 8-12 ramp pieces, not 6
The opening-hand probability that decides whether you land turn-3 plays.

The cantrip ladder: card draw sorted by impact-per-mana
Every deck wants 10-12 card-draw pieces. Here's the ladder, sorted by efficiency.

The 36/37/38-land rule, and the cards that break it
Why deck-building wisdom locks in at 37 lands, and the exact cards that let you cheat below that.
Format-specific rulings

The Companion rule, the 2020 errata, and why Lurrus is gone but Yorion isn't
What changed in June 2020 — and why one card is banned in EDH while its sibling is tier-1.

Activated vs triggered abilities: what Counterspell actually stops
Stifle, Disallow, Tale's End — and the cards that don't work the way you think.

Cascade resolution: the stack order most pods get wrong
Multiple cascade triggers from one cast. Which resolves first?

The intervening 'if' clause: how Aetherflux Reservoir actually wins (and loses)
Comprehensive Rules 603.4 — the ruling most pods get wrong, every time.

Two legends, one resolve: state-based actions and the 'legend rule' most pods misplay
Comprehensive Rules 704.5j — when can you actually keep both?
Underplayed cards

The 2-mana board wipe ladder: when smaller is bigger
Pyroclasm, Slagstorm, Anger of the Gods — sorted by what they kill and what they save.

The utility-land grade: Mortuary Mire to Field of Ruin
When a land slot should do more than tap for mana — and the right pick by bracket.

Graveyard hate that isn't Bojuka Bog: five better options for your deck
Bog is a slot. Here's when something else is the right slot.

Land Tax + Scroll Rack: a 30-year-old combo that's still tier-1
Two cards from 1994 and 1995 that out-draw most modern card-advantage engines.

Five 1-mana hatebears that change tempo more than 5-mana threats
Why a $4 1-drop hoses the table harder than a $40 finisher.
Design lineage and lore

The Tergrid problem: a card that's tier-1 at some tables and banned at others
What design choices created the split, and what it means for your pod.

Black Lotus to Jeweled Lotus: the lineage of 'broken' mana
What changed from 1993 to 2020 — and what design likely does next.

The Reserved List, briefly: why some staples cost what they cost
And which ones probably never get a reprint.

Pact of Negation to Fierce Guardianship: the 20-year design history of 'free' counterspells
Why 'free' is never free, and how design has tightened the rules with each new printing.
Combo and win condition theory

Stax is a spectrum: from Winter Orb to Smokestack to soft-lock
Trinisphere ≠ Winter Orb ≠ Smokestack. Knowing which your deck wants is the whole game.

Reanimator targets sorted by impact: which big creature actually wins?
Razaketh vs Jin-Gitaxias vs Atraxa vs Vorinclex — the right pick depends on what comes next.

Token doublers: the actual stacking order and what each combination does
Doubling Season + Parallel Lives + Anointed Procession. Two pieces vs three pieces is a real difference.

Two-card combos vs three-card combos: which is more fragile?
The math is counterintuitive. Three-card combos are harder to disrupt than they look.

Storm count in EDH: discipline for any deck, not just combo
Tracking the number of spells you cast each turn keeps you honest. Here's why.



