Dinosaur cutthroat

First strike, Death touch, skulk, haste, lifelink
{r} Dinosaur cutthroat deals damage equal to the
amount red mana you control.
{w} Dinosaur cutthroat deals damage equal to the
amount of white mana you control.
{r}{w} Dinosaur cutthroat deals damage equal to
the amount of whiteand red mana you
control.