Ya I wish they made Selmy more badass if they're going to kill him off. Maybe have Grey Worm gravely wounded and passed out and Selmy cut down 20+ of them in that room alone. Then he kneels down to check on Grey Worm only to have that whore slit his throat. But to be fair we don't know how many he cut down on his way into that room. Maybe he killed a bunch on the streets already