[u]Basic Idea[/u]
This started scryfall, using the random-card function. If found Bloodbriar and decided that it could be an interesting base for a deck. Spark Elemental came to my mind and with it the keywords echo and evoke.

[u]Tests[/u]
I have tested this deck against other pauper decks. The decks I tested against are a mixture of Control and Aggro and the result are recorded in a spreadsheet. If you're interested in details from the spreadsheet, feel free to ask.