If an Adventure spell leaves the stack in any way other than resolving (most likely by being countered or by failing to resolve because its targets have all become illegal), that card wont be exiled and the spells controller wont be able to cast it as a permanent later
+1/+1 isnt a huge buff, but the creatures that Goreclaw affects are already large
Note by the way, that even though both of these cards use typal coupling that includes Squirrels and Rats, the other two creature types are not the same
A favorite for many players, its sometimes easy to forget that this amazing cascade commander is legendary
When I achieve the capability to take infinite turns, I just tell the opponent as much and concede: The game is over at that point
As one of the best theft commanders, Sen Triplets was a boogieman of the format for a while