Agatha of the Vile Cauldron and Basalt Monolith on the battlefield.
Basalt Monolith does not have summoning sickness.
Agatha of the Vile Cauldron has power 1 or greater.
({2} magic symbol) ({U} magic symbol) available.
Steps
Cast Bring to Life by paying ({2} magic symbol) ({U} magic symbol) , causing Basalt Monolith to become a 0/0 artifact creature, then putting four +1/+1 counters on it and exiling Bring to Life.
Activate Basalt Monolith's first ability by tapping it, adding ({C} magic symbol) ({C} magic symbol) ({C} magic symbol) .
activate Basalt Monolith's second ability by paying at most ({2} magic symbol) , untapping it.