You don't say so, but reading between the lines I sense that you're setting "n"-up pieces on a single sheet that will be printed on card stock and die-cut. I also get the feeling you're making this a lot more complicated than you need to, if, as I assume would be the case, all the pieces are the same dimensions.
One of Illustrator's handiest features is its Step and Repeat capability, which masquerades as a transform.
The most flexible way to work with this is to set up a template in a non-printing die-line layer which will also serve as your artwork guide (even if the pieces won't be die-cut).
Here's an example, starting from an A4 sheet with the units set to millimeters.
Place guides exactly 10mm (or whatever is appropriate) from the right and left edges, and the top. Unlock guides
View > Guides > Unlock Guides and use Farray's instructions above to place the right-hand guide in its exact position, since A4 isn't exactly 210mm wide. Hold down Shift while dragging out the top and left guides so they snap exactly to the 10mm position.
Draw out a frame for the first token, with its top and left (for the front) and right (for the back) edges snapped to your guides. Here's what the back might look like. If you have only a single token on one sheet, skip the next three steps.
Effect > Distort & Transform > Transform, turn on Preview, set your number of copies to 2 or greater, and enter a positive (for the front, starting at the left) or negative (for the back, starting from the right) value in the Horizontal Offset field. Adjust this value until you have enough copies sufficiently spaced, then click OK. (It should be obvious that these values must be exactly the same, differing only in sign.)
I chose an arbitrary shape that wouldn't fit neatly between the guides to emphasize the point that this technique guarantees you have perfect alignment front and back, even if the left and right or top and bottom margins are uneven.
Object > Expand Appearance
With the group still selected, use
Effect > Distort & Transform > Transform again, this time finding the correct negative value in the Vertical Offset field, accept the transform and Expand Appearance as before.
Double-click the layer, rename it "Die-line," uncheck "Print" and check "Lock".
Build your token artwork under this layer, using its frames as guides. You can also snap guides to these frames, to make aligning your art easier.
Note that if your tokens are all the same on any one sheet, you only need to build one piece of art, then use the same values for Step and Repeat to replicate it, exactly lined up with your template.
Sounds like a fun project. Nobody ever asks me to do game tokens...