Sure, it's good, but is it really that good
Whats more, Vashta Nerada can get a +1/+1 counter every turn, including when the opponents creatures die
As in if you Giant Growth the Selkie against your resident Island player, thanks to islandwalk you just turned the famous green instant into an Ancestral Recall
Specifically, the archetype is good when the cards that are good against it are showing up in low numbers
From Beyond From Beyond is one of those cards thats good and useful, although not in any sort of you simply must run it kind of way
Each magecraft bonus is different, and there are magecraft cards to support a variety of deck styles and play preferences