Based on the the Adventure Time episode "Card Wars"

and it’s the end of the world

The question is

If your card matches another on the table

MTG Challenger Deck 2019 : Lightning Aggro Nick Forker Based on the the AdventureRelease Date: Apr 12, 2019 Challenger Decks are your on ramp to Standard. These four individual 75 card decks are geared toward Standard play and forged out of some of the most powerful strategies in Standard. Each Challenger Deck comes with a complete 60 card main deck and a 15 card sideboard, and is intended to be playable and competitive at a local level right out of the box. All cards will have been previously printed in Standard and are Standard