What started out as a cheap way to get access to cards like Enlightened Tutor and Gaeas Cradle has now ended up with these proxy cards fetching nearly $100 for the pricier options and thats a lot of money to invest if the table you sit down at doesnt condone this solution
Frogify (and Kasmina's Tansmutation) 3/10 The blue takes on Pacifism, and all told they are rather better
Decorum Dissertation If you thought Sign in Blood was good, get ready for its big brother
It covers the areas your build is weakest and that is the best way to go about improving a deck
You can copy your opponents best creature, perhaps a Titan or a dragon with a powerful enter-the-battlefield effect, swing with it immediately thanks to Haste, and then still have a functional mana rock for your future turns
Okay, admittedly, Unicorn decks aren't actually on the way