Warriors Version:
All Holder's Heroes gain 4/4 until end of holder's turn.
Priests Version:
Your Heroes gain 4/4 until end of turn.
If the Warriors Version is played in a side battle (not on your turn), the 4/4 remains until the end of your next turn, correct? Does the 4/4 only apply to the holder's heroes in play at the time Faith as Children is played?