The Unkindness of Ravens were inspired by figures from Norse and Celtic mythology such as the Valkyries and The Morrígan. Filming took place during 2014 in Fife, Edinburgh, and Perthshire, and moved into post-production in 2015. To help with costs, Brewster opened a crowdfunding campaign through Kickstarter, with the goal to raise £40,000. The campaign was successful and marked the first Scottish crowdfunding campaign to raise such a large amount of money and the highest funded British horror film on Kickstarter. Horror film critic Kim Newman reviewed "The Unkindness of Ravens", writing that it was "a demanding, complicated film which might well require repeat
Chaotic Trading Card Game colors based on the "tribe" with which creature is associated. The tribes are listed as "OverWorld" (Blue), "UnderWorld" (Red), Danian (Brown), Mipedian (Yellow), M'arrillian (black), and creatures unaffiliated with any tribe, called "Tribeless" (White). Certain creatures have abilities that are either active at all times ("Innate"), activated at will, triggered by certain circumstances or events, or activate when specific creatures are on the field ("Brainwashed"). Unlike the actual game, the animated series depicted creatures having to manually carry all of their Battlegear and their Mugic with them. Each creature in an Army is permitted to be equipped with one Battlegear