The former is based on the process of collecting creatures of the same name and having adventures with them, while the other is based on a card game that is quite often used to save the world from evil
When you force your opponents to make a villainous choice, they will be forced to choose between two options, each one benefiting you
Awesome, but Impractical: Some of the most powerful cards in this game require a very high amount of DP to be played
Similarly, Sableye [Lost Origin] can use its Lost Mine attack only if you have 10 or more cards in the Lost Zone
There can only be 1 face-up "Senior Silver Ninja" on the field
Careful, though, as your opponent can also use these counters, regardless of who generates them