Scapegoat is certainly a solid replacement for negate attack, although I don't really like how it can be stopped by solemn warning, but that's not too big of an issue, so I'll make that replacement now.
As for the continuous forms of stall, I don't like them because they're all prone to destruction, unlike the chainables, and also none of them completely stop attacks from all monsters, for example XYZ monsters are totally unaffected by Gravity Bind and Level Limit - Area B.