Even comparatively terrible three-cost ramp spells, like the Ravnican Lockets, have more utility late-game than your average Signet, and thats not counting all the actually unique options available to you
Heres a solid reward for doing it. This is an amazing piece of glue for my Adeline soul sisters deck, consistently sitting around to smooth my topdecks and drawing cards
You may pay alternative costs such as emerge rather than the card's mana cost
Whenever your Ring-bearer becomes blocked by a creature, that creature's controller sacrifices it at the end of combat
But that led to something cool: a player would ask a question like the above, and then somebody else at the table would begin telling the story
At the beginning of your upkeep, double your life total