This is a very versatlite ability that can be used offensively, aggressively, or even strategicaly with cards like Sisu that are great at banishing low strength characters
Lower Text [Security] You may play 1 level 5 or lower Digimon card with the [NSp] trait from your hand without paying the cost
Even it a very good creature comes up, for this specific type of protection, we have in the Black color much broader destruction effects, such as Languish or Liliana of the Veil, which are capable of dealing with cards that are "protected against black" in a much more efficient way than by playing a little blue guy and destroying it, which also clutters your deck
Expensive but
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It seems like a ridiculously hefty cost for a card