By Rohan Nadkarni Philadelphia’s deal with the veteran forward not only makes it a better team heading into next season, but makes a direct rival worse. P.J. Tucker is reuniting with James Harden. The burly forward agreed to a three-year, $33.2 million deal with the Sixers on Thursday, according to multiple reports. Keith Pompey of the Philadelphia Inquirerwas the first to report the parameters of a possible signing. Tucker, 37, averaged 7.6 points, 5.5 rebounds and 2.1 assists per game last season, his lone year with the Heat. He also brought his trademark defensive intensity to the team whil…