Ninja Penguin's Gandalf the White holding Captain America's Shield and a Master Ball vs. Quaking's Iceman with Icebending and a Yeti
For a mere mortal, it might be hard to defeat the ice powerhouse that is Iceman, but Gandalf is no mere mortal. Gandalf is the master of the Flame of Anor, immortal, and all around a powerful wizard. That right, immortal. After being "killed" by the Balrog, he comes back as a more powerful form, Gandalf the White. Harming him wouldn't do a thing, in fact, it would only help him gain more powers. And if Iceman tried to freeze him, he could just melt his way out using the Flame of Anor or the Ring of Fire. And Iceman's blizzard? Gandalf can just shout "You Shall Not Past!" and stop it with a blazing wall of fire. While Iceman is struggling to even land an effective hit, Gandalf can burn him and his Yeti. And trust me, ice is weak to fire.
But if that somehow wasn't enough, Gandalf could just use his Master Ball. That's right, his Master Ball that contains Dialga. If he somehow manages to screw up his powers of fire, Dialga can just control time to give him another opportunity to win. But Dialga isn't useful only for defensive purposes. It's also a master of steel type attacks, which can slice through ice like it's a piece of pie. It could take that Yeti down in no time at all.
To summarize, Gandalf the White would easily defeat Iceman by using his powers of fire to melt Iceman's ice completely. And if he manages to mess up, he can just use Dialga to travel back in time and correct his mistakes.
For a mere mortal, it might be hard to defeat the ice powerhouse that is Iceman, but Gandalf is no mere mortal. Gandalf is the master of the Flame of Anor, immortal, and all around a powerful wizard. That right, immortal. After being "killed" by the Balrog, he comes back as a more powerful form, Gandalf the White. Harming him wouldn't do a thing, in fact, it would only help him gain more powers. And if Iceman tried to freeze him, he could just melt his way out using the Flame of Anor or the Ring of Fire. And Iceman's blizzard? Gandalf can just shout "You Shall Not Past!" and stop it with a blazing wall of fire. While Iceman is struggling to even land an effective hit, Gandalf can burn him and his Yeti. And trust me, ice is weak to fire.
But if that somehow wasn't enough, Gandalf could just use his Master Ball. That's right, his Master Ball that contains Dialga. If he somehow manages to screw up his powers of fire, Dialga can just control time to give him another opportunity to win. But Dialga isn't useful only for defensive purposes. It's also a master of steel type attacks, which can slice through ice like it's a piece of pie. It could take that Yeti down in no time at all.
To summarize, Gandalf the White would easily defeat Iceman by using his powers of fire to melt Iceman's ice completely. And if he manages to mess up, he can just use Dialga to travel back in time and correct his mistakes.