Is there a command with which you can make a tnt block much stronger so that the tnt leaves a GIANT crater?
No, but the Too Much TNT Mod has some nice "toys"
Not that I know of but there are mods that bring different tnts in eg. Toomuchtnt
/ execute @e [type = tnt] ~~~ summon tnt Repeat, always active.
Warning, can lie
You can create a creeper on mc Tools that has a certain explosion radius.
Sry, at the beginning there was a mistake, I corrected it.
Must lie
It simply creates an infinite amount of TNT, not just a few more xD
Because when one TNT is created, another is created, and then two are created at once, then 4 at once, then one explodes, then 7 are created, and so on, until you destroy the command block.
Otherwise it's a good idea
/ execute at @e [type = tnt, nbt = {Fuse: 0}] run summon fireball ~ ~ ~ {ExplosionPower: 5}
With {ExplosionPower: …} you can set how strong the explosion should be.
I know xD
