1. Scry on opponent(s)
2. Buff
3. Shape change into a choker
4. Cast maximized timestop (using metamagic rod)
5. Teleport in
6. Cast 8 maximized delayed blast fireballs and 4 quickened delayed blast fireballs, using metamagic rods (and energy substitution if needed)
7. Contingency-teleport out (or shapechange into a balor and stick around to watch the fireworks).
2. Buff
3. Shape change into a choker
4. Cast maximized timestop (using metamagic rod)
5. Teleport in
6. Cast 8 maximized delayed blast fireballs and 4 quickened delayed blast fireballs, using metamagic rods (and energy substitution if needed)
7. Contingency-teleport out (or shapechange into a balor and stick around to watch the fireworks).