While that juxtaposition sounds a little bit strange at first, now that were on the third Modern Horizons set, were pretty used to this being their identity
You see, for the first couple years of Magic, the color red was largely a support color, primarily contributing burn spells, artifact and land destruction, and a variety of niche spells for special occasions
If left unchecked, that could kill someone (it still needs five hits), but our tendency to be a spread the love table will likely keep that from happening
You can sacrifice any counter on a card you control
Because all attackers are chosen at once, a spell cast this way can't affect which creatures you can attack with, but it can affect which creatures will be able to block
It doesn't matter if it is an enter the battlefield, attack, or death trigger, you're getting two of them now.