In regards to yubel v slifer, cant you summon yubels stronger forms in defence mode when you special summon them? If so you can just manipulate slifer into letting you get ultimate nightmare out, and then fuck it up
Yeah they can be summoned in attack or defence mode, but since they already have 0 atk (and 0 def) I don’t think it triggers Slifer’s secondary ability, or rather, the secondary effect triggers but there’s no attack points to lower so it doesn’t get blasted off the field.
But between several Fire King effects and Thunder Crash I can do that just fine myself lol.
Last time I got Terror Incarnate out and manage to get Slifer (and everything else) off the field via its effect lol So Slifer is basically fucked either way (unless Yugi’s got Mirror Force out, in which case Ultimate Nightmare is hecked).














