I see Embercleave as a way to trim the narrow red 1 drops.
I've removed Jackal Pup, Falkenrath Gorger and Firedrinker Satyr.
I've added Embercleave, SoulScar Mage to try to reduce the number of parasitic one drops to allow the red deck to be more a bit more midrange. (Similar to standard Ramnup red than mono red in modern/ legacy)
Firedrinker Satyr is probably the 3rd to 5th best aggressive 1 drop in most cubes given the mana sink. Esp if you are adding Embercleave, he stands to benefit more than most.
Please give us your top5!