If Nirkana Revenant were legendary, it would be the perfect Shade Commander
If you cast a three-cost creature with Squad 2, then pay four extra mana, youll get three copies of the card
The ninjutsu mechanic is also perfect since you need a creature to go unblocked to activate it
However, we can roll the planar die as many times as we want on our turn - but with a small catch: the first roll is free, the second will cost 1 generic mana, the third one 2 generic mana, and so on
In that sort of a role Remand is the vastly more desirable card, you want countermagic to deal with stuff cheaply and efficiently, you play card advantage spells to provide the late game inevitability and so you are just harming your own disruptive power by trying to combine the two into one overcost card