Dusk, Vengeful Heir

When this card enters the Battlefield, and both
Syba, Dragon Spirit and Twyli, Syba's Champion
are in your Graveyard, this card gains Twyli's
power, toughness, abilities, and effects.
—
Dusk was originally supposed to be Syba's Champion,
but when Dusk failed Syba's trials, Syba chose
Dusk's brother Twyli instead.