Master of Cruelties

[Subiskier]

Let's say I'm attacking with {Master of Cruelties} and my opponent has three creatures out and only chooses to block with one of them. Then I play {Mugging} on the blocker, does my attack go through unblocked or because he was declared as blocked initially it doesn't?

[Double-O-Scotch]

Once a creature is blocked, that's it, it's considered blocked for the rest of combat. 

[Subiskier]

Bummer

[FustyDavorite]

Mugging is a sorcery anyways. You couldn't play it during combat phase.

[Caboaddict]

The exception to this is if a creature has trample and you remove the creature prior to damage being dealt.

[MuggyWuggy]

You could just rogues passage at that point IMO :P

[particle]

or {aqueous form}

[Destore117]

Or (situational) {Alpha Authority} depends how many creeps they have

[ibtrickey]

I thought if you use an instant to destroy the blocking creature that the master would then deal its damage to the player due to the stack

[Sardok]

I thought if you use an instant to destroy the blocking creature that the master would then deal its damage to the player due to the stack

By definition, a blocking creature has already been declared as blocking something. {Master of Cruelties} states that he must both attack and not be blocked. Since a blocker in the way would eliminate one of those criteria, nothing happens.

Also, if he goes through, no damage is dealt as per the card text.

[ibtrickey]

But if you cast the instant the moment the are going to block the blocker would die before it can block..

[Destore117]

When are you getting the chance to cast the instant? When they declare blockers they must state who it is blocking. Cruelties is then considered blocked this combat.
Now if you were to destroy their creature before they declared blockers there would be no problem.

[Sardok]

But if you cast the instant the moment the are going to block the blocker would die before it can block..

You have to cast your spell before your opponent declares blockers. Once he/she does, you can't "unblock".

Also, what stack are you talking about?

[ibtrickey]

Look up stack on wotc.. Haha. And you can cast an instant during their declare blockers step. Or use an interrupt to do it.. Destroy the creature they would put to block over and it is not blocked when the declare blockers step would resolve.

[MuggyWuggy]

You basically have to doom blade or whatever to potential blockers right after you declare attacks, but before you allow them to declare blockers.

An "at the end of the declare attackers" 'step' if you will