https://powdertoy.co.uk/Discussions/Thread/View.html?Thread=16218...
Admittedly it's a very simple script, but I think it beats most explosives.
Rubidium can be activated by water. WATER! If that isn't awesome I dont know what is. C4 Is good pressure, C5 is not destructive but cools biz. Thermite is mondo deadly if you want to melt everything, and Deisel is good for controlled flame because OIL gives off GAS when under almost any pressure change.
I know I'm probably wrong, but what about DEST? Its description is 'a more Destructive Bomb', soo...
And can we count jacob1's EXPL?It's a lot stronger than BOMB ;P