Everdream [Modern Horizons] Ogre Shaman you may choose new targets

you may choose new targets for the spell

This mortal being seems to have been blessed with Qilin's essence

Set: Modern Masters 2017 Type: Creature — Bird Rarity: Common Cost: {2}{U}{U} Flying

Set: Portal Type: Creature — Wraith Rarity: Uncommon Cost: {3}{B} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

it assembles a Contraption

Everdream [Modern Horizons] Ogre Shaman you may choose new targetsSet: Modern Horizons Type: Instant Rarity: Uncommon Cost: {1}{U} Draw a card. Splice onto instant or sorcery {2}{U} (As you cast an instant or sorcery spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)