Hymn to Tourach is a good card, but the deck is focused on keeping the opponents side empty, if he has no lands he can`t play, making discard cards not that good. Damnation would be a good sideboard against opponents who can summon lots of creature fast or low cost ones.
Permalink
I used in this deck only cards that i actually have, so no sinkhole or smallpox. Ill make a better version with all available cards soon. Trinisphere is good in this deck but its not its main card, you can play perfectly without it so i don`t think its necessary to add another one.