Sacrifice

[La_Jungla]

So I'm playing MTG - Duels of the Planeswalkers 2013 on Steam, and there are a couple of weird things happening that doesn't seem right to me. One of them is when the computer-controlled player blocks with his {Brindle Boar} and the sacrifice-rule triggers when the boar dies defending, thus giving the opponent 4 life. Isn't that cheating? Or does a creature get sacrifices if it dies in combat?

[Fenster]

If you have a 5/5 for example and he has the boar he can block but before damage is dealt he can sacrifice it and your 5/5 will still deal no damage because it is considered "blocked".
If your 5/5 has trample however all damage will go through. Since he is basically blocking with a 0/0.

[Keyeto]

What probably happened was this:

You declared your attack.
They chose the boar as a blocker.
After blockers were declared, but before combat damage, they sac their boar.
Since you creature was declared blocked, it assigns no combat damage.

This would work, as blocked creature won't deal damage to a player (other than trample, of course).

510.1c A blocked creature assigns its combat damage to the creatures blocking it. If no creatures are currently blocking it (if, for example, they were destroyed or removed from combat), it assigns no combat damage.

Edit: I got a bit excited with the ruling there. As for your question, no. Dying does not set off effects/abilities that require a sacrifice to go off.

[Coffee Vampire]

Both of the above answers are correct.

RESOLVED