This came up at regional this past weekend. I was told by a couple players that "interrupt the battle" could not target character abilities (the particular example was Herod the Great returning a banded white Garden girl and the player wanted to play Words of E).
However, the REG states:
The phrase “interrupt the battle” includes interrupting the following:
o all active ongoing abilities
o abilities that are defeating one of the characters you control in battle o the last card played in current battle if it was played by your opponent.
I believe the EC would qualify as "the last card played" and therefore interrupt the battle would stop the EC's ability. Is that correct?
Kirk