The Dracolotus

{t}: Add three mana of any one color that shares
a color with a dragon you control.
Whenever you cast a dragon, choose one—
• Create a 3/3 colorless dragon with flying.
• Draw a card.
• Destroy target human.
{bull} It deals 2 damage to any target.
{bull} Put a +1/+1 counter on another dragon you
control.