Tempt with Vengeance by paying ({6} magic symbol) ({R} magic symbol) , creating at least six 1/1 Elemental creature tokens with haste.
Activate
Earthcraft by tapping an Elemental token, untapping a basic Mountain you control.
Activate the Mountain by tapping it, adding ({R} magic symbol) .
Repeat from step 2 five additional times.
Activate
Aggravated Assault by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , untapping all creatures you control and giving you an extra combat and main phase after this one.