the effect says that when the effect of a monster resolves your opponent can discard one card or the effect is negated.
my question is does this still go off if the effect is activated during damage step, say in the case of flamevell firedog,
does it still go through making my opponent have to discard one card before searching for a monster.
another scenario would be against fabled unicore, would fabled unicore's effect to negate the effect of another monster if you have the same number of cards in your hand, be able to stop raiho.
i found another website that covers this issue but not sure how accurate it is, and here is the excerpt from the other website.
"""
Raiho can negate ANY monster effect that resolves, therefore negating all monster effects other than continuous ones. Also, because it's a continuous effect, it cannot miss the timing, since it does not start a chain. If 3 monster effects are in a chain, when the chain resolves, Raiho will try to negate all of them one by one when they resolve, starting from chain link 3.
"""
thanks in advance for any help that you can give