Theyre powerful, rare, and were initially bound by the single-card rule meaning there could only be one of them per deck
I think you usually will want to pay the full five, because that gives you the option of using his -4 right away, and thats an ability that will usually allow you to kill something
Blister Packs Holographic cards have slightly more weight than the other cards, so many people open booster boxes and weight the booster packs inside using a jewelers scale
Naya Charm - D+ A fair modal card (and I normally love modal cards) that seems like it may have been designed for limited over anything bigger or more competitive, Naya Charm isn't terrible, it just isn't that helpful as a one time effect
Ironically, this massive popularity probably prevented the card from seeing more play in tournaments, as players who might have tried to reach for the Queen instead decided to cash them in for other cards they needed more
These signs are obvious even at first glance