Authoritative format document

ECT Rules

Ruleset 1.0.0 · Effective 2026-06-29

Format Overview

ECT (Eighty Card Tribal) bridges sixty-card and one-hundred-card formats. It combines a Leader and creature-type identity with four-copy construction.

Leader

  • The Leader must be a creature with at least one physical Rare or Mythic printing.
  • The Leader does not need to be legendary.
  • The Leader occupies the Leader zone and counts as one sideboard card.
  • The Leader is not a Commander and does not enable rules text that refers to your Commander.

Deck Construction

  • Mainboard: at least 80 cards.
  • Sideboard: exactly one Leader and up to nineteen other cards.
  • Non-Leaders require at least one physical Common or Uncommon printing.
  • Basic lands are unlimited.
  • Other cards are limited to four copies across Leader, Mainboard, and Sideboard unless card text overrides that limit.

Color Identity

  • Commander color-identity rules determine card color identity.
  • A deck may use cards within the Leader color identity plus at most one additional color.
  • The deck may omit Leader colors.
  • Colorless cards are allowed in every deck.
  • A colorless Leader may use colorless cards and at most one selected color.

Creature and Kindred Identity

  • Every Creature and Kindred card must share at least one creature subtype with the Leader.
  • Only the front face is used for this subtype comparison.
  • A card with Changeling is exempt.
  • A Changeling Leader contributes only its printed front-face subtypes for deck construction.

Globally Excluded Cards

  • Every card listed as Banned.
  • Ante cards.
  • Conspiracy cards.
  • Playtest cards.
  • Any card ever printed in an Un-set.
  • Universes Beyond cards remain legal unless another ECT rule excludes them.

Starting Life

  • One-on-one: 20.
  • Two-Headed Giant: 30.
  • Multiplayer: 40.

Announcement Schedule

Major changes

Format-wide changes are announced on the quarterly release cycle in months 1, 4, 7, and 10.

Minor updates

Banlist and High/Low Risk watch updates are reviewed monthly and communicated as minor rules updates.

Automated communication

Activated rulesets generate announcement copy and queue email communication based on each account’s communication preferences.

Version history

VersionStatusEffectiveSummary
1.0.0active2026-06-29 15:36:54