my first park ski was a silencer, it's an excellent park ski, and it's pretty durable, especially as a first year ski. How deep is the powder you're gonna ski in, I skied them in about a foot of powder and they were decent. You could also look at some Lines, if you can find an Anthem for cheap they'll be good in pow cause they have a 93mm waist, but are SICK in the park, and they wont be noodles by the end of the year cause most likely you wont be hitting very big jumps. Other skis to look at for first park skis are volkl walls, armada arv, and dynastar touble makers, but those are a little more expensive.
~WAKIN' UP THE NEIGHBORHOOD TONIGHT!~
~I could carve off a jump so hard I'd come in forward and take off of it switch~