Genoa President Enrico Preziosi announced an agreement was in place for the summer transfer to San Siro.
"He has proved his talents as a hitman despite the difficult season at Genoa," Marino told radiosport24.
"Palacio is a joker in the pack, as he can express himself at a high level both as a first and second striker.
"At Inter he can cover different roles, it all depends on the tactical system. He can start out wide on the left or even as a trequartista behind the two strikers.
"He really does provide a multitude of options and I am sure he'd work well with Ezequiel Lavezzi too... The only problems would be for those who have to mark them.
"Palacio is a great professional and a great worker, so it is always a pleasure to train him."