If I control Shosuro Hyobu, play Policy Debate and win the duel, can I trigger Hyobu from the discard effect of the Policy Debate? Is it important who chooses and discards for Hyobu or will any effect that discards trigger Hyobu?

Just now, Bayushi Shunsuke said:

If I control Shosuro Hyobu, play Policy Debate and win the duel, can I trigger Hyobu from the discard effect of the Policy Debate? Is it important who chooses and discards for Hyobu or will any effect that discards trigger Hyobu?

You can trigger Shosuro Hyobu after resolving the effects of Policy Debate.

[Tyler Parrott, Apr 4 2019]