Help I need a back up champ

I’m destroying lobbies with mordekaiser and just always seem to perform very very well with him (most of my games ofc). When he gets picked or banned it’s like I know I’m fcked and have no back up. I’ve tried plenty of champs already but I found none that accomplished what Mordekaiser does for me (idk the aura on this champ I just feel over the top and unbeatable). And don’t tell me to pick garen cause I won’t. Any suggestions? Rn my back up is jax, he BONKS too and is actually fun just a little bit harder to play in lane since he has no sustain, though he could be good as my 2nd champ to play?