Quote from Mockingbird »I think my favorite and least favorite thing about this is that after The First Sliver resolves, the next Sliver that you cast that cascades... if that sliver cascades into another sliver, that sliver will cascade as well. So cascading a 6 cost sliver could get up to five-six slivers (is there a sliver?) onto the battlefield depending on the cmc's you hit on the way. It at least gives hypothetical sliver decks a reason pick Tormod's Crypt for their sideboards I suppose.
Potentially it could get that much value, but realistically it won't happen. If you hit a non-sliver spell the chain stops and if you hit something more than 1 cmc less the chain skips a bit so if you went 6 mana sliver and revealed plated sliver you just get the 1.