I feel the high price tag here can be attributed to the fact that it is actually legal in almost everything--Modern, Vintage, Legacy, EDH/Commander and of course Pauper, and also because it's an older card with two printings in Portal sets that hasn't seen a reprint in a while
Q: Blocking vs countering
It's worth noting, though, that usually these high values do eventually drop, whether or not the cards actually receive a reprint
Their giant white and brown-tipped wings are impossible to mistake, and Shalai is one of the most recognized
However, most Korean cards are less sought after internationally than Japanese cards, so long-term price growth is usually slower
If you're looking for a lightly played (LP) copy, then you'll only need to shell out a few more dollars, with most sales capping out below $20, but getting your hands on a near-mint (NM) will run you close to the market price