You'll find the non-foil edition of this drop at WPN game stores at a later dateand for the first time ever, it will also be available on Amazon.com
So if you have a valuable card and someone tries to sell you a fake one, it's crucial to tell the difference
Another strong argument is if you expect to be on the receiving end of someone trying to 'deck' you
Fossil - Pokemon Card List and Prices
In most scenarios, it is best to let the ward trigger offer the cost to your opponent, if they pay that cost, you can still counter the removal spell or ability since they go on the stack like other effects
Benthic Explorers Borderland Explorer Drownyard Explorers Explorer's Cache Explorer's Scope Farbog Explorer Frontier Explorer (playtest) Homarid Explorer Horizon Explorer Icetill Explorer Jem Lightfoote, Sky Explorer Loot, Exuberant Explorer Minotaur Explorer Mutable Explorer Oreskos Explorer Quirion Explorer Selvala, Explorer Returned Sylvok Explorer Talas Explorer Troyan, Gutsy Explorer Tuktuk the Explorer Underdark Explorer Veteran Explorer Zan, Tunnelweb Explorer