All Purpose Aura

You must pay at least 5 mana in the casting cost.
{w}{1}: You gain 2 life. Activate only once per turn.
{u}{1}: Draw a card. Then discard a card. Activate only once per turn.
{b}{1}: Deal 2 damage to target player. Activate only once per turn.
{r}{1}: Deal 2 damage to target creature. Activate only during a main phase once per turn.
{g}{1}: Target creature gets +1/+1 until end of turn. Activate only during a main phase once per turn.