Callic, Ruler of Many Skies

Flying, Menace, Vigilance
When Callic, Ruler of Many Skies enters the battlefield, create 10 0/1 Wyrmling creature tokens
Callic, Ruler of Many Skies' power and toughness is equal to the number of Wyrmlings you control
{1}: Create a 1/0 Dragon Wyrmling creature token