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Terms - O | |
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One-shot effect
An effect that applies to the game only once. For example, Counterspell
reads, "Counter target spell." When it resolves, its effect is done.
One-shot effects differ from continuous effects, which
last for some amount of time.
Compare Continuous
effect.
Open
A Constructed-format event that has no restrictions on what sets cards
in your deck must be from. You can have cards in your deck from any set
available in Magic Online.
Compare Block
Constructed, Standard.
Opponent
A person you're playing against. In a spell or ability's rules text,
"opponent" always refers to an opponent of the player controlling the spell
or ability.
In a team game, only members of the opposing team are
opponents; teammates aren't opponents. In a free-for-all, all other players
are a player's opponents.
See also Multiplayer
formats.
Owner
The person who started the game with the card in his or her deck. The
owner of a token is the controller of the spell or ability that created
it. Even if your opponent has control of one of your permanents, you're
still its owner.
Compare Controller.