Heretic was formed in Ostróda, January 1991 by guitarists Arkadiusz Kisielewski and Ziemek. Soon lead vocalist Robert and drummer Krzysiek completed the first band line-up, starting doing shows in July.

In February 1992, they entered a studio in Olsztyn, to record in 2 sessions their debut demo Trasmigration, featuring 3 death metal songs – bass parts were recorded by a friend of the band: Jarek Rostkowski. The guest musician didn’t join the group due to musical differences – Zbyszek took bass duties.

Heretic entered the Studio-8 in Gdynia in February 1993 to record 3 new songs, which appeared on a split-cassette with the first demo material, released through Sphinx Records – in Spain it was released through Drowned Productions.