Almighty God

You become god, how will you handle this power because remember, "with great power comes great responsibilty"

Gain a +100,000 to all abilities when in combat 

Everything you look at dies if you want it to

you control the upper planes

you can teleport anywhere

You control the gods

Everybody worships you

You have a bunch of disciples (your adventuring party)

if you kill something you decide where it goes, you can even make it go to full on Christian hell, there they can get burned and purged for eternity against their will (complete torture)

You decide the rules of the game