What Carthage general used elephants to cross mountains to attack Rome

Hannibal invaded Italy. He brought 32 elephants with him. The elephants were war elephants and were brought to use them to attack the Roman armies, not to cross the Alps, which was a difficult feat for these animals which were gigantic and from very hot climates. Most of his elephants (if not all of them) died while crossing the Alps in the snowy winter.