Like a thunderbolt, the forces of Vecna crash into the defenders, all along the defensive line.
Battle is joined.
Against the tank fire, artillery, and machine guns of the foe, the mages and clerics of Vecna unleash an unending barrage of magical spells.
So great is this barrage it could be seen from near space, thousands of flashes lighting up the surface of the world.
The archers of Vecna unleash millions of arrows, filling the sky with preternatural darkness from them, and many as they land detonate, or unleash horrific necromancy, and some release powerful monsters.
Catapults holding Mirrors of Life Trapping fling them into the enemy ranks, releasing their prisoners all at once.
Other catapults filled with gray ooze fling their ghastly contents into the enemy lines.
Undead are cut to pieces by machine gun fire, but the pieces remain animated, and crawl up to the foe, to strangle and gouge, to cut and burrow.
Vecna raises his one hand, and a gigantic torrent of flames roars forth.
The flames shout for thousands of yards, incinerating everything in their path, be it tree, man, or even tank (think of the film War of the Worlds.)
Vecna laughs in maniacal glee as he withdraws his power, his hand smoking furiously.
Then he aims, and fires again, blowing great holes in the ground, blasting apart enemy fortifications, blowing large structures and huge trees into flinders.
Vecna roars:
BEHOLD, SERVITORS, THE WRATH OF YOUR MASTER.
BEHOLD THE PRICE OF DISOBEDIENCE TO YOUR RIGHTFUL LORD.
I ... AM ... VECNA!!!
The great battle has begun.
(The moderator will wait a while, before further posting, to give everyone a chance to react to this sudden onslaught.)