Power play is a neater solution to my issue with testing this cube on cubecobra.
Found this in my collection. Going to keep Command the Storm and Murder in the sideboard in case Dreadmaw runs away with things.
I am happier with black having this so that the Diamond Mare player doesn't get too much leverage over the Chain Lightning and the Mardu Scout.
This will power up Colossal Dreadmaw considerably. Dreadmaw now needs to be 2 for 1'd. Still going to hunt for a "target creature gets -4/-4 until end of turn" card, but this will be good to test.
Concerns are that Diamond Mare might be too strong with cards a third red card, particularly due to the recasting of Mardu Scout.
just to aid in drafting. can't draft from 1 pack on here, so this will allow for a custom draft of 2 packs of 8 for testing.