Explosive Tags could be called an almost bug-like item in this world. Even a Kage-level fighter would die if they took one head-on. After all, most people in the world of Naruto were still flesh and blood; getting hit by something like an Explosive Tag basically meant you were finished.
They could also be made into traps. Once someone stepped on one, it would automatically attach itself to their body, then go boom—leaving nothing behind. Someone like Nagato, who could calmly absorb one after falling into a trap, was simply a freak. In fact, many people in Naruto could use Explosive Tags skillfully. Of course, the simplest method was much like demolition mode in CS: place them somewhere as a trap, then wait for someone to pass by and—boom.
Another method was tying them to Kunai and throwing them, basically like tossing grenades.
Of course, Explosive Tags had a weakness too: they really were like grenades. Taking one head-on would definitely blow someone apart, but their true lethality actually came from the fragments and debris created when they destroyed other things. Besides, most ninja in this world knew a few defensive Ninjutsu.
Things like Earth Style Wall and Water Style Wall were common as dirt. Any one of them could greatly reduce the effects of an Explosive Tag.
So in a frontal battle, being able to slap an Explosive Tag onto someone's leg like the Third Hokage did to the Second was something only truly skilled people could pull off.
As for those who had truly incorporated Explosive Tags into their fighting style, Li could only remember two. One was Konan. Her Paper Release could turn the paper she fired into Explosive Tags. Honestly, with that move alone, it would not have been an exaggeration to say Konan could sweep