For a 3/3 to cost 5 mana and be worth something,
it has to have a balls-to-the-wall awesome
ability. This doesn't. Temporal Adept sang this
same song in 9th, and it sang it a lot more
cheaply and without the restrictions. Usually
this sort of thing is good in Limited at least,
but four snow permanents? That's a tall order.
Heidar,
Rimewind Master - Heidar reminds me of two
previous blue legends - Alexei, Zephyr Mage and
Barrin. Both of them had bouncing abilities. In
both of those cases however, the bouncing
required a harsh cost. Heidar doesn't have much
cost attached to his ability, but the
restriction of having snow permanents in play
can be just as harsh. Heidar seems a bit too
slow for constructed. In limited, it may be
difficult to guarantee he'll be of any use at
all. This puts him into the realm of a casual
card. And it's there that he really shines.
Casual legends are something we've gotten a lot
of in the past couple years, but Heidar still
seems welcome.
Now this guy I like. Obviously, you need to have
it in a block deck with lots of snow permanents,
but if you do, the ability is devastating. It is
a bit higher in the cost range, but if you can
get it on the board, it really is quite evil. In
casual, pair it with an untapper, like Tidewater
Minion, and then it really gets ugly for your
opponent.
In limited, you'd really have to have the snow
pernaments to make this work. I'm not sure what
ratio the new set and so the total block will
have, but you would have to have probably a
minimum of 12 snow permanents in your deck to
make it worth playing.