WizarDru
Adventurer
Spear Push extends the amount pushed by an spear attack by 1.
Ah, I see. Was thinking too literally. So, just to list Spear Push:
" Whenever you push a foe with a polearm or spear attack, you may add 1 square to the distance pushed."
So the crux of the question is: "if a power allows you to enhance the amount of squares you get to push with a power/attack, do you get to shift as far as they move or only just a normal 5-foot shift?", am I reading that correctly?
So really, it comes down to how you read Tide of Iron's one sentence on the subject: "You can shift into the space that the target occupied."
It reads to me that they meant that you shift a single space, unless you have some feat to allow you to shift more than one square. I'm with Karinsdad on this one. I don't think they intended, in spirit or letter, to allow you to push someone and then side-step, just because the target was larger.