It means that if an opponent decides to challenge one of your characters, it must choose the one with Bodyguard if able
Doubling Season is a great example of this
Whispers in the Well (Booster Packs) Ages 8 + | MSRP $5.99 | Available at Amazon, Best Buy, GameStop, Ravensburger Online Store) (Illuminators Trove) Ages 8 + | MSRP $49.99 | Available at Amazon, Target, Ravensburger Online Store Whispers in the Well is the 10th and latest set to be released for the Disney Lorcana Trading Card Game, having hit store shelves this October
This isn't a moment in the game's story, and only something that happens in combat if you choose this move, so I was pleasantly surprised to see this fun moment recreated in Magic: The Gathering
While white has other token generators that are also sagas, particularly in current Standard, the sequence of token batches over multiple turns uniquely captures the progressive nature of the summon's animation, rather than creating them all at once