The only way to beat them is to quite literally join them - or remove the characters in more indirect ways
The thing that really stuck out to me is that Battle for Bretagard generates Human Warrior tokens
They then stay there and can use the abilities written on the card, as long as you can pay their cost
For players, while these specific versions don't offer a competitive advantage, their presence might influence the secondary market values of both the new rarities and their original printings
Set: Reign of Jafar Printing: Cold Foil Increase: +$17.25 Current Market Price: $24.24 The foil version of one of Reign of Jafars most competitive and sought-after cards, Rhino - Power Hamster, was underestimated in the sets first days of release, then exploded in demand once tournament players rushed to get their copies
Whats your favorite aggro commander