The easiest way to do this via formulas requires that the size of your range be stable, so let's say you want to mirror columns A:H
Column(range) will give you a column number, so A:H will be columns 1, 2, 3, ....8
On your destination sheet, you want column A to contain the data from H on your source sheet, so you could do something like
=Sheet1!H1
but that isn't dynamic.
Instead, so something like
=offset(Sheet1!$H1,0,(column(Sheet2!A1)-1)*-1)
so basically, as you drag this formula across from A to H on your destination sheet, it should evaluate to
=offset(Sheet1!$H1,0,(1-1)*-1)= offset(Sheet1!$H1,0,0)
then column B will be
=offset(Sheet1!$H1,0,(2-1)*-1)= offset(Sheet1!$H1,0,-1)
etc
So the offset increases by one for each column you drag to the right.
HTH