Having exploded, I transform into a sentient explosion. Don't ask me how that works, it just does.

I then summon an infinite stream of explosions that annihilates everything on the hill but leaves the hill undamaged. I then plant a flag made of infinite explosion on the hill. Anything attempting to capture the hill must remove the infinite explosion flag, which cannot be touched without blowing yourself up.

The hill now belongs to the infinite explosion empire.