Return target creature to its owner's hand. Harmonize {5}{U} (You may cast this card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by {X}, where X is its power. Then exile this spell.)
You say you come in peace. That you come here at all is an act of war.
![Ureni's Rebuff [Tarkir: Dragonstorm]](http://www.cardmerchanttakapuna.co.nz/cdn/shop/files/71428856-8494-550a-ab38-5f13f1f5fd9f.png?v=1784059087&width=1445)