How to Build a Commander Deck: A Step-by-Step Framework

Building a Commander deck without a framework leads to unfocused piles of "good stuff" that lack synergy and consistent game plans. This guide walks through a structured approach to deck construction, using Ognis, the Dragon's Lash as our example.

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Step 1: Understand Your Commander

Before adding a single card to your list, answer two questions:

What does it do?

Read the card. Identify its abilities, triggers, and any built-in synergies. Note the color identity—this defines your card pool.

What does it NOT do?

This is where most deck builders skip ahead too quickly. Your commander's gaps determine what the 99 must provide.

Example: Ognis, the Dragon's Lash

Color Identity: Jund (Black/Red/Green)

What it does:

• Creates a tapped treasure token whenever a creature with haste attacks
• Has haste itself, so it can generate treasures immediately

What it doesn't do:

• Draw cards
• Provide payoffs for treasures beyond mana
• Grant haste to other creatures
• Provide reliable ramp (treasures enter tapped and require attacking)

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Step 2: Define Your Win Conditions

Every deck needs a clear plan to close out games. Aim for 2-3 strategies: one or two primary win conditions and at least one secondary.

Avoid the trap of including too many unrelated paths to victory. This dilutes your deck and makes it inconsistent.

Example: Ognis Win Conditions

Primary Strategies:

• Aggressively create treasures until you are ready to cast finishers like (Torment of Hailfire, Marionette Master) after chipping life totals through combat and pinger effects
• Multiple combat steps with treasure synergy (Aggravated Assault + Amulet of Vigor for untapped treasures)

Secondary Strategy:

• Treasure ETB pingers (Reckless Fireweaver, Mirkwood Bats) to drain opponents as treasures flood the board

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Step 3: Set Your Staple Ratios

These are your non-negotiables—the "vegetables" of deck building. Skipping these leads to decks that stumble, stall, or fold to interaction.

Adjust quantities based on what your commander already provides:

Category	Baseline	Ognis Adjustment
Ramp	10-12 sources	8-10 (commander generates treasures, but they're tapped—don't skimp)
Card Draw	10-12 sources	10-12 (commander provides zero card advantage)
Spot Removal	4-6 pieces	4-5
Board Wipes	2-4 pieces	3-4 (adjust based on final creature count)
Commander Protection	3-4 pieces	3-4 (Deflecting Swat effects, the deck is commander centric, protecting it is a high priority)
Lands	35-37	36 (adjust ±1-2 based on curve; MDFCs recommended)

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Step 4: Identify Synergy Abilities

Now that your foundation is set, list the abilities and keywords you want on cards throughout the deck. These support your chosen strategies and make your 99 work together.

Example: Ognis Synergy Priorities

• Haste on creatures (mandatory for treasure generation)
• Haste-granting effects for creatures that lack it
• Additional treasure generation to increase output
• Evasion (flying, trample, unblockable) to ensure attacks connect and your creatures survive
• Attack trigger doublers to multiply value
• Artifact ETB damage for the pinging opponents when you create treasures
• Token doublers (optional—powerful but not essential)

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Step 5: Fill the Remaining Slots

With your staples and synergy priorities defined, you now have a focused lens for card selection. Every card you add should either:

1. Fulfill a staple role (ramp, draw, removal, etc.)
2. Support a win condition
3. Provide a synergy ability from your list
4. Cover multiple of the priorities listed above. For example Ruby, Daring Tracker, this card is great for Ognis because it provides both ramp AND haste

If a card doesn't fit one of these categories, cut it—no matter how powerful it looks in isolation.

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The Template

Copy and use this for your own builds:

COMMANDER: [Name]
COLOR IDENTITY: [Colors]

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WHAT DOES IT DO?
- [Ability 1]
- [Ability 2]

WHAT DOES IT NEED FROM THE 99?
- [Gap 1]
- [Gap 2]
- [Gap 3]

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WIN CONDITIONS

Primary:
- [Strategy 1]
- [Strategy 2]

Secondary:
- [Strategy 3]

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STAPLE RATIOS (Baseline → Your Adjustment)

- Ramp: 10-12 sources → [X]
- Card Draw: 10-12 sources → [X]
- Spot Removal: 4-6 pieces → [X]
- Board Wipes: 2-4 pieces → [X]
- Commander Protection: 3-4 pieces → [X]
- Lands: 35-37 → [X]

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SYNERGY ABILITIES TO PRIORITIZE

- [Ability/keyword 1]
- [Ability/keyword 2]
- [Ability/keyword 3]
- [Ability/keyword 4]

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Final Notes

This framework won't build the deck for you, but it will prevent the two most common mistakes: decks without enough fundamentals, and decks without a coherent game plan.

Start here. Refine as you playtest.