Ariel the Draco King

Flying, hexproof, haste.
Dragon spells you cast cost {2} less to cast.
Whenever a dragon you control deals damage or
enters the battlefield, you may draw a card.
{2}{w/u}: Exile target permanent or counter target instant, sorcery, or enchantment.
{2}{r}: Dragons you control gain +1/+1 until
"Ariel the Draco King" leaves the battlefield.
{2}{b/g}: Put target permanent from your hand or graveyard onto the battlefield.