Cards known as the flip cards from the Kamigawa set were so hard to understand in a first glance, that they would never be used again
Crimson Moonlight, Kushala Daora's Fury, and Song of the Barbarous Beast are all cheap spells with decent effects
That sort of card advantage + aggro potential is exactly what fast decks are looking for in a 4-drop
Golgari Findbroker gives you access to Vraskas in your graveyard
As a general rule, those differences are important to help keep colors distinctbut when faced with wordiness on a card that's already wordy, we'll err towards the cleaner answer even if it's slightly less "in color." Call of the Full Moon One of the cool things about Magic Origins and its exploration of many worlds we've seen before was that we were able to make a number of cards that were mechanical throwbacks to the set we were revisiting
Now, you can obviously introduce this in your local group if you want to, but were talking about it becoming official