OS93 Rules

For those who enjoy to play other Old School formats you can read below the rules for Old School ’93. All current MtG rules and errata apply unles specified otherwise.

Legal sets:

Alpha
Beta
Unlimited
Arabian Nights
Only English versions are allowed in OS93.

Reprints:

Default no. Tournament Organisers can specify otherwise.

Restricted in OS93:

Ancestral Recall
Balance
Black Lotus
Braingeyser
Channel
Chaos Orb
Contract from Below*
Darkpact*
Demonic Tutor
Mox Emerald
Mox Jet
Mox Pearl
Mox Ruby
Mox Sapphire
Regrowth
Shahrazad
Sol Ring
Time Walk
Timetwister
Wheel of Fortune

*Note that ante-cards are banned unless the tournament/game is played for Ante.

Banned in OS93:

(The ante-cards are banned unless the tournament/game is played for ante)
City in a Bottle
Contract from Below
Darkpact
Demonic Attorney
Library of Alexandria
Mind Twist

Errata:

Chaos Orb (2)
Artifact
1, Tap: Choose a nontoken permanent on the battlefield. If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, and touches the chosen permanent, destroy that permanent. Then destroy Chaos Orb.

Note: For dexterity cards, you are allowed a “fair flip”; i.e. you may move the card(s) you’re choosing to a different position on the playing area to get a good flip.