The artifact requires a pretty high cost to get the chain started, though - four mana (or three and two life) to cast, then two mana (or one and two life), a tapped card and a sacrificed creature to set its ability in motion
If you gain an amount of life "for each" of something, that life is gained as one event and Sanguine Bond's ability triggers only once
I wrote several pages on how you should sequence with Dragons Rage Channeler + Mishras Bauble + Ledger Shredder + Fetchlands
We consider this a premier blue-chip asset due to its restrictive specialty set distribution and its proven ability to command a massive premium over standard GX prints
This isnt a unique effect, but it is one that blue players absolutely love
Thankfully, the Chronicles variant is significantly cheaper at the moment, and theres also more supply available