New Redemption Grab Bag now includes an assortment of 500 cards from five (5) different expansion sets. Available at Cactus website.
Reckless Endangerment isn't in battle, so Burning Bush couldn't try to target it. In any case, RE is from a previous turn which by definition cannot be negated.
I would say that based on the Herod's Treachery/HA2 ruling, triggering a CBN ability (in this case RE, in that case the capture) makes the trigger (in this case the discard card, in that case the withdraw card) essentially uninterruptable. So I think the hero in battle cannot interrupt himself being discarded. I can possibly see it the other way though.
But we are not interrupting The CBN ability, we are interrupting the trigger which can be interrupted. I don't see why I can't negate a trigger that makes no logical sense.
No, you don't get special initiative. Placed enhancements cannot be negated after a turn.
That sounds convoluted and confusing.
Perhaps the cannot-be-negatedness of abilities completed on previous phases doesn't include indirect negation while cannot-be-negatedness when it appears on a card does include indirect negation.
Perhaps my ruling about Herod's Treachery was wrong.