mtg return target card from graveyard to hand Eternal Witness [Modern Masters] Return from Extinction · Modern

With something like Springleaf Drum on the battlefield, you can tap these Elementals for mana before their evoke trigger forces you to sacrifice them

Together, these form a new online-only format

On top of that, when you sacrifice it, you get tempted by the ring, making it an auto addition to decks that care about the mechanic, or just to at least make something harder to block

This means that cards like Rampant Growth are not included as a tutor, even though they technically could be considered one

A similar trigger applies to tokens, where if one or more tokens are to be created under your control, you instead double that number