The McDonalds drop is a "Proof of Concept" for branded collectibles
Its standard text says that if you would be targeted by a spell or ability an opponent controls, that said thing is countered unless they pay the cost associated with the ward protecting the object or player
You can also set up a powerful trigger like, say, Call of the Wild, or and then put the biggest creature in your deck onto the battlefield for without the other being bothered by counter magic
Despite a middling reception to Aetherdrift at the start of the year, each set after it was a success, with Tarkir: Dragonstorm and Edge of Eternities both proving there's a lot of room for great stories and inspired settings within MTG 's multiverse, and Final Fantasy proving there can be quite some potential to Universes Beyond in Standard
You can tell the shopper to: Find Best Match: By default, your shopper will use their best judgement to pick a replacement for your item