Historical Rules · 10 August 2018
Rule 712.1a
Official source text from the 10 August 2018 Rules release
There are three specific meld pairs. Each meld pair consists of two specific cards whose back faces combine to form one oversized Magic card face: Midnight Scavengers and Graf Rats meld to form Chittering Host; Hanweir Garrison and Hanweir Battlements meld to form Hanweir, the Writhing Township; and Bruna, the Fading Light and Gisela, the Broken Blade meld to form Brisela, Voice of Nightmares.