That effect helps aggressive decks churn through cards at a healthy rate, and it plays into the type of strategy Emberheart Challenger slots right into, with prowess decks often employing pump spells that target their own creatures
Do it every turn, and the advantage adds up quickly
What we mean by that is that though it can take up to a thousand cards, it definitely becomes pretty unwieldy to use, and youre probably asking for trouble in terms of the strain put on the binder itself
An opposing character who challenges one of your characters must choose one with Bodyguard if able
If you look at the most popular Commanders in Magic , you'll probably notice that most of the top-rankig cards boast multiple colors
Encore a Staunch Crewmate for some cards, or maybe Gemcutter Buccaneer for extra treasure