Unfortunately as with most ice types, it has a secondary type which in this case is Flying
It has all kinds of variations based around adding or subtracting certain cards, but ultimately a Stage 1 card capable of doing 130 damage on two energy is always going to be a powerhouse choice
Japanese cards, on the other hand, are highly sought after worldwide, which drives up their resale value and long-term investment potential
Now change that to any permanent (can get lands), and boost the power up on Carmen, Cruel Skymarcher to reanimate to your cold-blooded heart's content
And a 1st edition set like this is especially rare, as the popularity of Pokemon cards resulted in multiple reprintings of the Base Set over time
Counterspell is a hard counter, while Mana Leak is a soft counter