With Vipers Rage, does this affect all characters controlled by the target player for the rest of the phase, including any new characters added to play after the event card has been played?
"After you lose a challenge ... all characters controlled by the attacker lose ... icons .. until the end of the phase"
Same question re Only Game That Matters - "Until the end of the challenge, participating characters without an intrigue icon do not count their STR"
Presumably someone added to the challenge after the event card has been played would be subjected to the same effect
I can't spot any difference between these two events, in terms of structure, but ran into a dispute about Vipers Rage last night (I assume both effects is continuous for the stated duration)