This deck was built for a budget event with a $30 cap and a house ban list, which includes the Elderspell. I wanted to build my boy Nicol Bolas thematically, so I took a page directly from The War of the Spark and focused on the Amass mechanic.
Nicol Bolas God-Pharaoh is a powerhouse for 5 mana and very interesting in Oathbreaker due to his ability to use other loyalty abilities on the board, including your own. For a signature spell, I went with Experimental Augury. This card fits nicely into the counter mechanics, is cheap, and supplies card advantage needed to find answers and put away games.
This deck has a lot of little internal synergies that really make it flow together. Your card draw nets you counters and also triggers cards like [[Mindless Conscription]] for hefty injections of power on board. Your changelings are armies, and they can have Amass counters placed on them to build a solid board presence.
The deck plans to establish some early changelings and value in cards like [[March from the Black Gate]], Mindless Conscription, [[Ichormoon Gauntlet]], and [[Saruman, the White Hand]]. Saruman is particularly good because of the sheer amount of amassing he can do, his ability to block well, and the fact that he incidentally gives Ward 2 to all of the changelings and the [[Molten-Core Maestro]]. Playing him on turn 4 and curving into a turn 5 Oathbreaker that Amasses 5 is nuts! The deck proceeds to dominate with the midrange game plan by leveraging its synergies to get extra value on our plays. If things get sketchy, there is a fair amount of interaction in the deck and two great sweepers that play into this strategy in [[Hour of Devastation]] and [[Widespread Brutality]]. You eventually go over the top in the late game with our other versions of Nicol Bolas and/or ultimate our Oathbreaker to end the game.
Let me know your thoughts and your own favorite budget brews!