I have episode 18.1 and I am doing a dark type monorun. I chose Aqua Gang and have defeated team magma, yet despite having a pokesnax, and going into the alley, the Houndour has not spawned. I just beat Shade, and I have checked the pokemon location spreadsheet, which says it should spawn there. Other people who have asked this question seem to get conflicting responses. Could someone shed some light on this, I don't want to wait Post-restoration for a Houndoom. Thanks!