Aug. 6, 2007 -- Half of U.S. adults over age 65 suffer from at least one common age-related condition, according to a new study. But researchers say these highly treatable geriatric health problems are often overlooked by health care providers.
Steel-types completely wall this set, so it is ideal that your team has Pokemon that pack strong Fire-, Fighting- or Ground-type attacks. Moltres is an excellent partner, as it boasts STAB on its powerful Fire Blast and is immune to Skuntank's only weakness, Ground-type attacks.
I use that as my moveset for physical Greninja. Protean is really only recognized for the free STAB, when moves like Shadow Sneak can be used to gain immunities or Spikes can be used to get a quick SDef boost in a sandstorm. It's most definitely one of the most powerful abilities in the game.