Last, weve got Crimson Vow with another fantastic white board wipe, with By Invitation Only
For a combo deck it's even worse, because you're likely to steal a couple of combo pieces and miss out on others, leaving you unable to secure the win
Returning to Courser of Kruphix decks, lets jump over to one of the Khan color combinations
Whirler Rogue Creature Human Rogue Artificer When this creature enters, create two 1/1 colorless Thopter artifact creature tokens with flying
Its a cheap and efficient way to dig into your deck and manipulate how the next few turns will unfold, and for more convoluted spellslinging strategy, playing cheap spells is the entire strategy
As far as Magic Arena goes, there isn't really a way to get the deck cheaper than eight rares and four mythics since Dorothea, Vengeful Victim, Katilda, Dawnhart Martyr, and Hallowed Haunting are the foundations of the deck, although turning a rare dual land into Evolving Wilds does help with the cost a bit there as well