In order to use counters effectively, you'll need to keep some mana available , especially if your opponent is playing a similar deck
Sorry, Teferi, Temporal Archmage-youre my dog, and Im going to go looking for you the best I can in this deck, but I need you as one of my 99
For a two-drop, it does get slightly more expensive, but its only one extra mana
For its part, Kazamdu Mammoth is potentially an excellent card
Apart from the new partner commanders and the four-color face card, you get two Esper commanders, a Boros commander, a UW Commander, and two mono-red commanders, all of which deal (at least, to some extent) with the artifact theme of the deck
I do wonder when and where theyll finally reprint Ravages of War Sun Quan, Lord of Wu Exxaxl: Sun Quan is mainly a combat trick, something blue doesnt easily have access to normally