Commander Shepard, the captain, the soldier, the noble warrior, the saviour of the human race. Commander Shepard, the bane of evil in the galaxy, the mighty Spectre. Is there any way at all that you can halt the march of so colossal a figure?
Put him in a closed pit, one with walls no more than a foot high, and let him be.
You can make the pit as big, as small, as round, or as square as you want. Actually, you can even give him as many weapons as you wish, and make them as powerful as you possibly can. RPGs, bazookas, sniper rifles that do twenty rounds a second and don’t ever overheat, omnigel that rains from the sky, everything’s legit, as long as you can stuff it all in the pit along with him.
Just put him in a closed pit, one with walls no more than a foot high, and let him be.