Egg Watcher Mage

When Egg Watcher Mage enters the battlefield,
create a legendary 0/1 creature token named
Corwin Egg.
Vigilance, Haste
{t}: Target creature gets +0/+4 until end of turn.
"At first, we were gonna go with everyone, but
someone had to stay behind to look after the
chocobo egg, so we stayed."