Decks are constructed with 50 cards, each card must not contain mana symbols not present in their Commander's Colour Identity and every card should have a converted mana cost of 3 or less.

 

Tiny Leaders is presented to be a one on one format, with a best of three match, and 10 card sideboards.  Sideboarding is done in between games.  Your deck must remain 50 cards, and your commander may not change between games.

The Banned List : 

 

• Ancestral Recall

• Balance

• Black Lotus

• Black Vise

• Channel

• Chaos Orb

• Contract From Below

• Counterbalance

• Darkpact

• Demonic Attorney

• Demonic Tutor

• Earthcraft

• Edric, Spymaster of Trest

• Falling Star

• Fastbond

• Goblin Recruiter

• Grindstone

• Hermit Druid

• Imperial Seal

• Jeweled Bird

• Karakas

• Library of Alexandria

• Mana Crypt

• Mana Drain

• Mana Vault

• Metalworker

• Mind Twist

• Mishra's Workshop

• Mox Emerald, Jet, Pearl, Ruby, and Sapphire

• Necropotence

• Shahrazad

• Skullclamp

• Sol Ring

• Strip Mine

• Survival of the Fittest

• Sword of Body and Mind

• Time Vault

• Time Walk

• Timetwister

• Timmerian Fiends

• Tolarian Academy

• Umezawa's Jitte

• Vampiric Tutor

• Wheel of Fortune

• Yawgmoth's Will

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Additionally, these Legendary creatures cannot be used as Commanders:

• Derevi, Empyrial Tactician

• Erayo, Soratami Ascendant

• Rofellos, Llanowar Emissary

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Tiny Leaders uses the standard "Vancouver mulligan" rule.

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If a commander would be put into a graveyard from anywhere or exiled from anywhere (so long as it is face-up or a player can look at it face down,) it's owner may choose to put it in the command zone.

 

Each time you cast your commander, the next time you cast it from your command zone, it will cost (2) generic mana more to play.

Format Exclusive Card: one general is available for use, to support those who wish to play without a colour.

    Glass: Legendary Creature (c)(c)(c) 3/3

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The Tiny Leaders format ignores play rule : "If a player has been dealt 21 points of combat damage by a particular Commander during the game, that player loses a game." and players begin the game with 25 life.