Mulligans
This deck can do 192 damage with the coin, otherwise it does 160 at the most.
Use Shadow Visions to find Vivid Nightmares.
Play Temporus. Survive because of Amara, Warden of Hope and Zola the Gorgon.
On your first turn, play Clockwork Automaton, both Radiant Elementals, and one Vivid Nightmare.
On your second turn, play your remaining Vivid Nightmares and ping face 3-4 times.