Farmstead Gleaner exiled by Agatha's Soul Couldron).
Yurlok of Scorch Thrash and
Agatha's Soul Cauldron on the battlefield.
Yurlok of Scorch Thrash does not have summoning sickness.
Yurlok of Scorch Thrash has at least one +1/+1 counter on it.
({1} magic symbol) available.
Steps
Activate
Yurlok of Scorch Thrash by paying ({1} magic symbol) and tapping it, causing each player to add ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Activate
Yurlok of Scorch Thrash using
Farmstead Gleaner's ability by paying ({2} magic symbol) and untapping it, putting a +1/+1 counter on it.
Move to your next step or phase, causing each player to lose life equal to the amount of unspent mana in their mana pool.