Magic: The Gathering has been constantly evolving, changing, and experimenting with new ideas since its debut back in August 1993, and many ideas from the early days have since been scrapped or made obsolete by newer, stronger effects that players love
Turns out I was wrong
Still, its an admirable experiment that tries something new, albeit one that nobody plays with except for a handful of solid cards
Use the power of the target creature as Nibelheim Aflame resolves to determine how much damage it deals to each other creature
Sentry Bot is one of them, and will allow you to potentially supercharge your batteries in response to an attack
Of course, it doesnt really work that way, you have to exile seven cards from your graveyard to do that, but who cares