Sounds like "Counterspell" to me.
I've heard some hardcore Fluxxorz say that Counterspell (and other Instants) actually break the game, and they vehemently defend their positions.
At least, that's what I heard.
On 1/17/07, Austin Muhlestein <horowits@xxxxxxxxxxx> wrote:
That is where I got the name stasis, M:TG! Thanks for reminding me!
Also on a magic note... What are your opinions about cards that can be
played on another players turn (instants?) and do you have any suggestions
as to what some good cards are?
Stop Action (action)
You may play this card on another player's turn.
Play this card only when another action card is being played.
That action card does nothing and is discarded, but still counts as a play.
that's my idea.