Been playing a similar variant minus iblee on MD and it seems to work, I find it fun and you can easily accumulate a lot of resources.
1 maximus, you usually have enough searchers for it, not often removed without you fully losing anyway.
One fleurdelis, search after main combo off titaniklad or ecclesia to keep in hand for second turn, you win or lose before you need a second.
Same for alba zoa, you'll win or lose before you need the second copy, I play 2 dogmatikamacabre to re-summon from grave if you do need it again.
White knight could be cut, I keep it in to summon if thats all i can and to keep pre-prep live as it cannot draw kalamity or alba-zoa, and if you draw your one macabre or relic preprep is dead. 2 preprep for this reason, you kind of want it in your opening hand but dont want it after that.
One nexus. Could be cut if you can think of something better, I like it as followup for the beatdown after you exhaust their extra deck. Alba Zoa their deck ti GY and banish them to summon nexus.
Ken and gen for ash bait or starter. Often can shut down your plays tho if ashed going 1st. Iblee and cynet mining same idea. Get almiraj in grave for maximus. could cut one of these packages for the other and just play board breakers or hand traps.
One punishment, can be searched and youre probably not going to play long enough to need the second.
One titaniklad same idea, really only going to use it once. I find two arc lights to be enough. skull warrior for delayed destruction, 2 n'tss is enough if you use carefully.
Ultimate slayer in the side for going second. IDK about mourner, which hand trap is better in this deck.
Let me know what you think, any ideas?