Evasive is like the flying ability in Magic: The Gathering: it stops Glimmers from being challenged by other Glimmers without the Evasive tag
Too long the format was about fast non-interactive decks like Eldrazi, Phoenix or Hogaak
I personally do not like the card a ton, as it does not generate very interesting games in my opinion

Sort Card Type Skuntank #15Holo Rare $4.58 Skuntank #26Rare $0.74 Skuntank #54Uncommon $0.04 Skuntank #13Promo $52.67 Skuntank #37Uncommon $0.35 Skuntank #77Uncommon $0.36 Skuntank #55Rare $0.57 Skuntank #76Uncommon $0.07 Skuntank #115Uncommon $0.24 Skuntank #53Uncommon $0.25 Skuntank #49Uncommon $0.31 Skuntank #30Common Skuntank #48Uncommon Skuntank G #94Common $0.39 Skuntank G - 2009 (Tsubasa Nakamura) #94Common $0.77 Skuntank V #108Ultra Rare $0.74 Skuntank V - 056/098 #56Double Rare $0.38 Skuntank V - 105/098 #105Super Rare $2.21 Skuntank V - 106/098 #106Super Rare $9.71 Skuntank V (Alternate Full Art) #181Ultra Rare $11.71 Skuntank V (Full Art) #180Ultra Rare $1.37 Skuntank #13Promo $52.67 Skuntank V (Alternate Full Art) #181Ultra Rare $11.71 Skuntank V - 106/098 #106Super Rare $9.71 Skuntank #15Holo Rare $4.58 Skuntank V - 105/098 #105Super Rare $2.21 Skuntank V (Full Art) #180Ultra Rare $1.37 Skuntank G - 2009 (Tsubasa Nakamura) #94Common $0.77 Skuntank #26Rare $0.74 Skuntank V #108Ultra Rare $0.74 Skuntank #55Rare $0.57

GameStop and Best Buy have one each, which means you're going to have to buy Journey Together products at both, and spend $30 or more between the two stores, if you want copies of each card
Lots of people buying, lots of opening, lots of reselling