I'd give you an estimate of this green lands price here, but by the time you read this it'll likely have increased by a sizeable chunk again
Let's say you're Gaston, and while your deck is a fairly typical midrange Limited deck with an average curve, you know that Belle's deck is extremely aggressive, full of two- and three-drops
While it doesnt entirely lack removal, many of its best effects are locked behind an artifacts ETB, meaning your opponents have ample time to respond if you waste your entire turn casting Spine of Ish Sah
Given this is just next week, we'll find out soon enough
For example, if you blight 2 and put two -1/-1 counters on a creature with three +1/+1 counters on it, two of those +1/+1 counters and the two -1/-1 counters will be removed, leaving the creature with only a single +1/+1 counter on it
It might not buy you out of big trouble, but youre positively presenting yourself to the other player