Pyramid of the Pantheon does not have summoning sickness and has at least three brick counters on it.
({1} magic symbol) available.
Steps
Activate Pyramid of the Pantheon's second ability by tapping it, adding ({U} magic symbol) ({U} magic symbol) ({U} magic symbol) .
Activate The Blackstaff of Waterdeep by paying ({1} magic symbol) ({U} magic symbol) and tapping it, causing Pyramid of the Pantheon to become an artifact creature until end of turn.
Activate Voltaic Construct by paying ({2} magic symbol) , untapping Pyramid of the Pantheon.
Activate Pyramid of the Pantheon's second ability by tapping it, adding three mana of any color.