The combination of their powers raises 2 interesting questions
1) the living monolith absorbs cosmic energy to grow and maintain his superhuman form. If he raises his force field from his Juggernaut power set, this should block the cosmic energy and thus cause him to shrink. So are the power sets at odds with each other?
2) previously the living monolith once he got past a certain size (60' tall or so), he would continually absorb cosmic energy and eventually grow large enough to reach his living planet form (he did this once before). However his mass grew quicker than his strength so past a certain size (500' or so) he could not move. Now with the massive power of the juggernaut added in this might not be the case. I wonder if Marvel will let him go continue to grow this time and remain mobile?