Multicolour decks can be powerful, but if you don't put the right kind of lands in your deck, there's a strong chance you'll be stuck with cards you can't pay for
For instance, if your average mana value is 4, youd ideally want to have drawn at least four lands among your initial 11 cards to ensure you can play your cards on curve
That predominately looks like including more instant and sorcery matters payoffs like Niblis of Frost, Sedgemoor Witch, and Swarm Intelligence
I like the comical image of the genie-spirit coming out of the bottle and immediately being blown away as it tries to hold on to the woman
But you dont want to take weak defenders over strong cards before you have Sentinels to find your Chaplain, because youll end up with a deck thatll lose if you dont naturally draw your Chaplain
Use them to pull out your Dark Deals and Waste Not combo, a healing card if you are getting low, a fatty creature if you have a bunch of mana reflects running, or anything else to fit whatever situation you are in