Whenever Mongal attacks a character, you may move that character to its controller's support row.

Mongal doesn't have range, can I still finish the attack if the character is moved to the support row?

If I can move the character to the support row, but i can't legally attack, can I ready Mongal?

Do I get to choose where in the support row to move the character?

1) You don't need range to attack support row characters.

2) Since YOU are moving the character, you can move it wherever you want, so you don't need to worry about it being protected (and thus requiring flight)

3) And even if both of those weren't true-- flight and range are only used to determine initial attack legality. Once the attack is legal (ie, once "Mongal attacks a character"), the character can move anywhere on the board, and the attack will still proceed. It doesn't get interrupted "partway through" because "Oh no, now it wouldn't have been legal!"

Once it's legal, it's legal.

thanks. makes perfect sense.