Dead Man's Plate "Hopeful" Change

It would be really nice if dead man's plate worked only on champions & epic monsters or champions only since it just takes too much time to stack it up to 100 and just to see all of it wasted on a minion just so you decided to farm for which the effect (crushing blow) itself is completely useless against a minion.If team-fights were to happen suddenly amid all this you have no active to slow them from crushing blow coz it is recharging before even its served its purpose against even 1 champion let alone try surviving and using it on the 2nd champ.So my request is please make DMP work only against champions and or along with epic monsters.Thank You.