Flying
When Wavesifter enters the battlefield, investigate twice. (To investigate, create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)
Oracle
Creature — Elemental
Flying
When Wavesifter enters the battlefield, investigate twice. (To investigate, create a colorless Clue artifact token with “, Sacrifice this artifact: Draw a card.”)
Evoke (You may cast this spell for its evoke cost. If you do, it’s sacrificed when it enters the battlefield.)