Suppose I play Spoils of war. When I declare it there are, say, 2 creatures and artifacts in the opponent's graveyard, but in response he (for whatever reason) sacrifices/discards another. This is obviously not going to counter the spell or anything (due to the change in casting cost) because it's already been played, but I've also already chosen my targets and how they'll be affected. Now I have another +1/+1 counter to put onto a target. Does this; a) Get ignored - just use the value on declaration (that's my 50-50 guess); b) Make me put another counter on one of my current targets (that's my other 50-50 guess); c) Let me do a new target if I want; d) Something else; or e) All of the above. Thanks for the help.