Magical Armored Goat

This card cost an additional {w} to cast if your commander is white. This applies for {u}, {b}, {r}, {g}, and {c}. If you have no commander, this
creature cost an additional {4} to cast.
At the start of the game, choose a instant or
sorcery card in your deck and show it to your
opponent. Whenever you cast the chosen card,
you may gain 2 life or draw a card. This creatures
power and toughness are equal to 1 plus the
number of times you have cast a card with the
same name as the chosen card.