This would both sacrifice to end combat, and to counter all spells and abilities on the stack. Not that you couldn't make a card that does that... but I'd guess it would cost... ? minimum, since it's a counterspell in white and a fog in red.
Mm. Yeah. A blue instant would make more sense. You might be able to get it for to represent the fact that it isn't quite a Time Stop (maybe you countered your opponent's spell, but they still get to attack.) Unfortunately, being a blue instant does mean it isn't as special, though.
It's a pity that activations like aren't appropriate for every set.
Oh, also if this remains as something to be sacrificed, I'd be careful about recursion (it should exile itself instead of sacrifice.) Players aren't very happy when they skip their draw step every turn.
, sacrifice Clapperboard: End the current phase.
This would both sacrifice to end combat, and to counter all spells and abilities on the stack. Not that you couldn't make a card that does that... but I'd guess it would cost...
? 
minimum, since it's a counterspell in white and a fog in red.
Yeah, probably. This is just an early prototype and could potentially end up as an instant.
Mm. Yeah. A blue instant would make more sense. You might be able to get it for
to represent the fact that it isn't quite a Time Stop (maybe you countered your opponent's spell, but they still get to attack.) Unfortunately, being a blue instant does mean it isn't as special, though.
It's a pity that activations like
aren't appropriate for every set.
Oh, also if this remains as something to be sacrificed, I'd be careful about recursion (it should exile itself instead of sacrifice.) Players aren't very happy when they skip their draw step every turn.