However, there are generally stronger or more efficient options that already exist, such as Sanguine Bond (which does the same effect on a permanent), Vito, Thorn of the Dusk Rose (adds lifelink synergy and costs less), or Exquisite Blood combined with Sanguine Bond for a gamewinning combo
Notably, opponents cant try to remove the creature you wish to sacrifice
As for Rishkar's Expertise and Return of the Wildspeaker, they don't have this requirement, so they are a bit safer
Archmage Emeritus Everyone's favorite Spellslinger trigger in Blue for Izzet, Jeskai or mono-Blue with Talrand, Sky Summoner is this four-drop 2/2 body
Its an ability trigger doubler thats specific to landfall, which makes sense with some of the other Foundations Jumpstart cards