Tainted Grail: Conquest

Ultra Level is a burn strength of above 80% on the Wyrdcandle. This can be earned easily in the 1st combat of any run, by simple tapping the 1 key to light a Wyrdcandle as many times as it takes to fill the meter. An extremely easy achievement. You must be in combat (the card game section) for this to count, lighting them to ultra in the overworld doesn't count (but you can come in with one lit and light a second one if you want to)