I'm not completely sure, but is Secluded Steppe even modern legal?

What is your budget? Take a look at B/W Token Budget as well.

This is a casual build so it doesn't matter if it's modern or not. But it's only legacy because it's so old, not because it's too good. So my meta is okay with it. And, my budget is about $30 without the godless shrines.

Use Duress and Despise for hand disruption then. Tidehollow Sculler should replace Castigate. Raise the Alarm and Spectral Procession should be 4 ofs. Dismember is a better form of removal as well that's cheap.

You might want to consider Timely Reinforcements instead of Midnight Haunting. Yeah, the tokens may not have flying, but it'd be a means to stabilize if you're ever in a losing situation for the same mana cost.

I probably wouldn't run it as a 4 of. Too many would just cut into my standard token generators. Might be sideboarded.

Timely Reinforcements is a great sideboard card against burn. Looks pretty solid!