Upgrade your precon with a plan.

Turn a Commander precon into a focused upgrade package, with additions, cuts, and a budget you control.

Choose a stock precon, fix its weakest roles, and test a small upgrade package.

Saved deck projects

Keep up to eight projects with six versions each, compare changes, and record what to test next. Projects and observations stay on this device.

Project name

No saved projects yet. Load a deck and save its first version in the tool.

Backup and transfer between devices

Backups contain your full decks, observations, owned cards, and protected inputs. Keep them private. Importing replaces this product’s saved projects on this device; it does not change your active draft.

Import a project backup

Start with your precon

Load a stock precon

Filter preconsChoose a stock Commander precon

CommanderPurchase budget ($)

DecklistImport a text deck file

Table bracketMaximum swaps

Owned cards, protected cards, and exclusions

Owned cardsKeep these cards

Do not suggest these cards

Drafts and five recent reviews stay on this device. Card lookups go to Scryfall. Shared links include the deck and commander, but exclude your owned list and protected cards.

Make the next review useful

Start with a small package and keep the commander’s theme intact.
Draw, ramp, and interaction targets are heuristics, with overlapping roles.
Keep enough lands, then test the changed list before another upgrade.

Read the complete method →