Really? ...huh, while that makes sense & unless you going full beatdown, you'll kill their other effects as well except Susa's half damage effect.
So not *completely* worth the 2 Tribute Summon over say IMD or Mirror/Yada + Tailor/Fickle combo.
Could this card be used to avoid the effect of Man-Eater Bug (from Bakura lvl 40)?
Her effect is continuous, that's why. The same happens with Gravekeeper's Visionary
FYI: What it means by "monsters cannot activate their effects" is that, if you must confirm "yes" or "no" to activate a monster's effect, or give any input at all to start the effect like that, Angel 07 being on the field will prevent that from being possible.
For all who are wondering why certain monsters aren't affected, the effect of Angel 07 only applies to stuff that activates. Cards like Tyrant Dragon, Flash Assailant, etc have effects that don't activate and therefore will still apply.