The creature we sacrifice at the end step is just a token from Grave Titan (triggering Eloise, Nephalia Sleuth), right
If you cast Twin Bolt with two targets and one of those targets becomes illegal before Twin Bolt resolves, the remaining legal target will be dealt 1 damage
It has no way to heal your characters, no removal, no songs, a very little card draw
This can be done either via combat damage, burn spells, or even abilities
Theres nothing wrong with the deck or strategy, but its power is limited by its options much like Admiral Beckett Brass was before Commander Legends
It currently ranks among the top commanders on EDHREC with more than 20,000 EDH lists posted online