Command Tower is one of the most reprinted lands of all time, as its simple ability to be tapped for any mana color your deck has is useful in every Commander deck
One method would be to animate a Cascading Cataracts and pump some of that delicious magical energy into a Malachite Talisman with each spell you cast to keep your chain going
Your creatures will be faster, stronger, and more burdensome for your opponent if you can create ways to get to 5 mana quickly
#5 Perhaps you might share your list with us so that we can all see the correct way to provide the correct density of disposable artifact sacrifice targets and fair tutor targets
Whenever you use one of the new bending mechanics like water, earth, fire, or air, you get to draw a card, which is one of the best things you can do in Commander
That's a Furnace of Rath for just you