Vesperlark
Creature — Elemental
Flying
When this creature leaves the battlefield, return target creature card with power 1 or less from your graveyard to the battlefield.
Evoke 
(You may cast this spell for its evoke cost. If you do, it's sacrificed when it enters.)
Raoul Vitale
Modern Horizons (MH1)
• #35Rulings
The ability that causes you to sacrifice an evoked creature is a triggered ability. Players may respond to this triggered ability while the creature is still on the battlefield.
(wotc • 2019-06-14)
Rulings
The ability that causes you to sacrifice an evoked creature is a triggered ability. Players may respond to this triggered ability while the creature is still on the battlefield.
(wotc • 2019-06-14)