Imagine if you will, Amiibo Cockfights, but with a human touch (obviously not killing them)
The Human coaches are allowed to work alongside their Amiibos, making every fight 2v2, but if anyone is Killed, win or lose, They're out.
As such, Imagine a theoretical Fight between Ben with Pitfall 2 and Andre with Waifu. They pick their characters, the amiibo fight, they fight, and the only one that survives the onslaught is Waifu. Whatever the next tournament round is, it's Waifu solo vs the next contestants, as Andre was wiped out in the first round.