Why would you ever have a Rograkh in play to sacrifice to Louisoix's SacrificeLouisoix's Sacrifice when you could have sacrificed him to Diabolic IntentDiabolic Intent, Infernal PlungeInfernal Plunge, or Culling the WeakCulling the Weak, spells that all proactively move you towards winning the game
As such the costlier the card the more you have to want the effect and I can't see that being the case for this one
You could certainly purchase a played copy of these cards for a lesser cash investment
Not every deck has to follow a tried-and-true strategy though, sometimes you want to do something a little different
Decoction Module + Fabrication Module These two pieces, along with Animation Module, are a classic infinite combo, and Decoction Module and Fabrication Module go infinite with various combinations of the next batch of cards
There are lots of different kinds of good red creatures, from cheap creatures that kill your opponent quickly to big and expensive dragons that win the game in just a couple hits