What if you open it and a couple packs are dinged
It certainly does seem to suggest that they're unusually unpopular with the fanbase
That should pretty much tell you all you need to know as far as reasons for including this card in your Soldier deck
Gadwick, the Wizened XUUU Legendary Creature Human Wizard 3/3 When Gadwick, the Wizened enters the battlefield, draw X cards
C Common Chaos Infinity X TRAP Change as many Defense Position monsters on the field as possible to face-up Attack Position, then Special Summon 1 "Meklord" monster from your Deck or GY, but its effects are negated, also it is destroyed during the End Phase
The backdrop of a city during a thunderstorm only adds to this malevolent scene, as its the perfect environment for Gengar to enact its playful curses