Forum:Rainbow veil vs forbidden chalice

if I equip my rainbow veil to an opponent monster and attack it with a diminished Barbaros or fussilier, should I get the effect of restoring the original attack for good(negating the effect) just as forbidden chalice would do?

if I attack jinzo with my rainbow veil equipped monster would I be able to activate traps like blast with chain during damage step? since rainbow veil's effect starts when declaring the attack, my opponent could activate sakuretsu or similar?

rainbow veil negates monsters' continuous effects?